Changing the R studio shortcut to switch tabs - rstudio

By default, one can use the keyboard shortcut ctrl+alt+left/right to switch between tabs. Is it possible to change this shortcut?
I don't see it in the list of keybboard shortcuts:

You want to modify the "Open Next Tab" and "Open Previous Tab" shortcuts. The shortcuts you have listed are different from mine but either way the Ctrl+Alt+ work for me even though the listed shortcuts are Ctrl+F11 and Ctrl+F12. Modifying these shortcuts allows you to use whatever you want to switch between tabs.

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Visual Studio Code shortcut to display autocomplete list before typing on macOS

I am trying to display all possible words after putting the cursor in certain place in the code.
The autocomplete list appears when I start writing/typing:
However, I would like to see all suggested words even before typing.
I tried command + space, however it was a system shortcut for Search in macOS:
Any thoughts?
In case you are a CJK user using Mac, Ctrl+Space will not work, since it is used to switch IMEs.
There is another keyboard shortcut for triggering suggestions:
Option+Esc (Mac)
Alt+Esc (Windows)
Also see this post.
VS code version: 1.41.1
I solved this problem using fn+control+space.
Hope it helps you.
"change input source" keyboard shortcut should be disabled
To disable it->
Go to system preferences -> keyboard -> input sources
add a new input source (choose ABC)
Go to shortcuts tab (inside of keyboard settings)
Click on input sources on the left
disable the "select previous input source" shortcut
restart your vs code and now ctrl+space will show quick suggestions.
You can use the following alternative keyboard shortcuts:
⌘+I (mentioned in the official VS Code documentation for "Trigger suggestion")
⌥+esc
fn+control+space
The shortcut for the "Trigger Suggest" command is ⌃Space (ctrl+space) — as mentioned in the comments.
Most default shortcuts can be found in the documentation, which will automatically show the correct keybindings for the system you're on. In other words, if you visit the page on a Mac, you'll see Mac keybindings.
Additionally, you can:
go to Code > Preferences > Keyboard Shortcuts (on a Mac) and search for keybindings based on the command you want to execute
open up "show all commands" (⇧⌘P on a Mac) and search for the command there, allowing you to either view the keybinding for that command, or simply navigate to it directly from the search
Of course you'd have to have some idea of what the command's name might be. And in this case, a search for "suggest" would suffice.
If you use too many keyboard layouts, maybe the MacOS shortcut might be active. You can disabled ^(Ctrl)+Space shortcuts for MacOS.
System Preferences>Keyboard>Shorcuts>Input Sources> Disable Select the previous input source.
You can use next shortcut for change input sources.Ctrl+Alt+Space
when I was set up 2 keyboards with different layouts, and it turn out it overrides the ^+Space behavior, so this is how fix it:
Go to system preferences -> Keyboard -> Keyboard shortcuts
Click on input sources
and disable the "select previous input source" shortcut

Microsoft Visual Studio Hotkey waiting for another keypress

I'm used to Netbeans and all its shortcuts (e.g. ctrl+e to delete a line), but I'm new to Visual Studio, so I don't like its keypress combinations that much.
When I changed all the hotkeys I need (e.g. alt+shift+up/down to move lines up and down), I also tried to set deleting a line to ctrl+e.
The problem is that when I press ctrl+e now, the IDE waits for me to press another key, because there are hotkeys that go like "ctrl+e followed by ctrl+something".
Do I have to disable all the other hotkeys if I just want to use ctrl+e, or can I tell the IDE something like "when nothing is pressed after ctrl+e for 500ms, then dont wait any longer"?
Thanks in advance.
PS: Microsoft Visual Studio Enterprise 2015
These multi-sequence keystrokes are called chords, and Visual Studio uses them because it has so many commands that there would otherwise be nowhere near enough keyboard shortcuts to invoke them all. And no, you cannot set a timeout value.
You have to disable all of the other keyboard shortcuts that involve Ctrl+E, otherwise the software will have no way of knowing if it should keep waiting for you to press the second part of the chord.
Here's a hint that may make your life easier. When you arrive at the Environment → Keyboard options, don't bother to select anything. Just leave everything at their defaults and click in the "Press shortcut keys" box. Type Ctrl+E. Now, the dialog will give you a list of all the currently-mapped shortcuts that use Ctrl+E.
On my installation, all but one of them are specific to the "Workflow Designer". Only one is used by the "Text Editor"—Edit.ToggleWordWrap, which is mapped to Ctrl+E, Ctrl+W. Since you will only be deleting lines in the text editor, you don't actually need to worry about unmapping all of the shortcuts for the Workflow Designer scope. You can just set up your shortcut as being specific to the text editor. Stepwise:
Remove the keyboard shortcut for Edit.ToggleWordWrap. (You can do this quickly by typing "toggleword" into the "Show command containing" textbox.) Click the "Remove" button.
Now, switch to Edit.LineDelete.
Change the "Use new shortcut in" combobox to "Text Editor".
Click in the "Press shortcut keys" box, and type a good old chordless Ctrl+E.
Click "Assign", and you're done (unless you want to change ToggleWordWrap to something else).

Keyboard Shortcuts Not Working in Visual Studio 2013's Find in Files dialog?

I usually access Visual Studio's Find in Files feature with Ctrl-Shift-F, type in what I'm after and press enter.
Everything is working, I can type what I want to find, Ctrl-A will select all text, arrow keys will navigate within the Find What text control only the enter key press does nothing. The dialog still has focus, just nothing happens.
The accelerator keys that are marked on the various buttons also do not do what I expect. Alt-P will open the Project menu, Alt-F the File menu, Alt-A nothing. When the Find in Files dialog is focussed I expect the Find Previous, Find Next or Find All actions to be performed.
The tab key also does not change focus from one control to another while in that dialog.
The escape key will kill the focus in that dialog and return focus back to the file that I have open in the text editor as expected.
I have tried using the Reset button under Tools -> Options -> Environment -> Keyboard to no avail.
I am using Visual Studio Ultimate 2013 Update 4 on Windows 7 x64.
If you're using Resharper, after applying R# keyboard scheme, it will add it's keyboard shortcuts. For example, it adds Alf+F shortcut in Text Editor scope.
Setting your keyboard shortcut in Global scope is not enough if same keyboard shortcut is set by R# for Text Editor.
To override R# shortcut in Global scope, make sure you delete R# shortcut setting in VS keyboard settings modal dialog.
Rarely, strange keyboard shortcut behavior could be also caused by non-US keyboard setting. If you are using non-English keyboard set in Windows Control Panel settings, try this solution:
Set keyboard layout to US
Reset keyboard shortcuts in VS under Tools -> Options -> Environment -> Keyboard
Assign your shortcuts (e.g. Alt-F)
Set keyboard to your local layout

What key shortcuts are to comment and uncomment code?

There were Ctrl+E+C (comment) and Ctrl+E+U (uncomment) in older versions, or Ctrl+K+C and Ctrl+K+U.
But in VS 2012, I can't see key shortcuts:
How to enable those shortcuts?
Keyboard accelerators are configurable. You can find out which keyboard accelerators are bound to a command in Tools -> Options on the Environment -> Keyboard page.
These commands are named Edit.CommentSelection and Edit.UncommentSelection.
(With my settings, these are bound to Ctrl+K, Ctrl+C and Ctrl+K, Ctrl+U. I would guess that these are the defaults, at least in the C++ defaults, but I don't know for sure. The best way to find out is to check your settings.)
You can also add the toolbar in Visual Studio to have the buttons available.
View > Toolbars > Text Editor
Use the keys CtrlK,C to comment out the line and CtrlK,U to uncomment the line.
From your screenshot it appears you have ReSharper installed.
Depending on the key binding options you chose when you installed it, some of your standard shortcuts may now be redirected to ReSharper commands. It's worth checking, for example Ctrl+E, C is used by R# for the code cleanup dialog.
This is how I did it,
Menu Tools → Options on the Environment → Keyboard window
One can alter the default shortcuts following the below steps
Select Edit.CommentSelection in the listbox
Click on "Remove" button
Select "Text Editor" option in the dropdown under "Use new shortcut in:"
Press your own shortcut in the textbox under "Press shortcut keys:"
Example: Pressing Ctrl+E and then C will give you Ctrl+E, C
Click on "Assign" button
Repeat the same for Edit.UnCommentSelection (Ctrl+E, U)
I went to menu: Tools → Options.
Environment → Keyboard.
Show command containing and searched: comment
I changed Edit.CommentSelection and assigned Ctrl+/ for commenting.
And I left Ctrl+K then U for the Edit.UncommentSelection.
These could be tweaked to the user's preference as to what key they would prefer for commenting/uncommenting.
"commentLine" is the name of function you are looking for. This function coment and uncoment with the same keybinding
Shift + alt + a
the command palette is great for finding shortcut keys.

Setting Shortcut Keys in Textmate

I am switching to textmate and there are a few things I want to change. I have tried Googling for the answer, but haven't found a simple explanation for how to rebind shortcuts globally.
First, tab switching doesn't work with Cmd+Shift+{ and Cmd+Shift+} This works in nearly every other application (FF, Terminal, etc.)
How do bind those keys to switch tabs?
Second, I would like Ctrl+j/k/l/; to move the cursor, it it possible to rebind that command to the arrow keys?
Thanks in advance.
Yes. For the arrow keys, you can record a macro (Bundles > Macros > Start Recording, [press an arrow], Stop Recording, Save Last Recording. It'll make a macro with the one command moveLeft: or similar. Set a key equivalent and you're done.
For the tab switching, go to System Preferences > Keyboard > Keyboard Shortcuts and add new shortcuts for menu items called "Next File Tab" and "Previous File Tab". Restart TextMate, and you're done.

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