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In 2.79 I have the following keyboard shortcuts assigned for Edit Mode:

  • Vertex Select: Cmd1
  • Edge Select: Cmd2
  • Face Select: Cmd3

Note: I'm using "Emulate Numpad", so I register a shortcut as Numpad 1 instead of 1, for example.

Here's what the key binding that controls that in 2.79 looks like:

Blender 2.79 Vertex Select Keyboard Shortcut

And here's what I tried in 2.90 that isn't working:

Blender 2.9 key binding not working

I believe it has to do with the RNA field not existing in 2.8+ but I'm not sure how RNA works. What would be the way to do this in newer versions of Blender?

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There are two problems that need to be solved:

  1. The shortcut you're attempting to assign is already in use for the viewport navigation. You may want to change these so you're still able to use them with a different key binding.
  2. The identifier for the operator is not correct, but creating a new shortcut isn't necessary since the mode selection already exists in the default keymap. You only need to adjust the key binding from the regular 1, 2 and 3 keys to the numpad ones.

In order to solve problem 1):

  1. Open the keymap preferences
  2. Switch the filter method to Key-Bindings.
  3. Search for "Numpad"
  4. Scroll down to find the 3D View section and adjust the shortcuts that use Ctrl + Numpad 1, Ctrl + Numpad 2, Ctrl +Numpad 3. (If on a Mac there will also be Cmd + Numpad 1, Cmd + Numpad 2, Cmd +Numpad 3, in which case either the Ctrl or Cmd set can be deactivated, freeing up some shortcuts.)

View Axis keyboard shortcuts when viewed on a Mac

In order to solve problem 2):

  1. Open the keymap preferences
  2. Switch the filter method to Name
  3. Search for "Select Mode", the identifier for the operator is mesh.select_mode.
  4. Adjust the key binding to your liking.

Reassigning the Mesh Select Mode Shortcuts

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  • $\begingroup$ Thank you so much! You've helped me migrate from 2.79 to 2.9. I'm finally reimplementing all of my shortcut customizations, and this was an important one. 2.9 is feeling a lot more comfortable now! (BTW, Ctrl on macOS also triggers the back views, so I just left those as they were, and remapped the Cmd versions which were redundant anyway - perfect!) $\endgroup$
    – Mentalist
    Commented Sep 3, 2020 at 11:01
  • $\begingroup$ I added some screen shots to your answer, along with additional details for Mac users. I hope you don't mind. $\endgroup$
    – Mentalist
    Commented Sep 3, 2020 at 11:13
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    $\begingroup$ @Mentalist Not at all, I think the screenshots and Mac specific information are a nice addition. $\endgroup$ Commented Sep 3, 2020 at 11:16

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