Blender

Deselect all with a single pressing of the “a” keycode

Since Blender 2.80 the deselect all function – complete deselection of all objects or geometry – has been switched from a single press of the “a” key to a double “a-a” or a combination of “alt+a” keycodes. To return the deselection function to a single “a” press, we can edit the settings of the selection operators. Or, since Blender 2.81, a special checkbox is provided for this in the keyboard shortcuts settings.

  • Open the “Preferences” window
  • Switch to the “KeyMap” section
  • Turn on the “Select All Toggles” checkbox in the “Preferences” subsection
  • Save the settings by pressing the “Save Preferences” button in the upper right corner of the window.

Now the selection of all objects/geometry and their total deselection will be performed by pressing the single “a” key.

How to check the last changes in the Blender Python API

Every time switching to a new Blender version, add-on developers face the problem of updating the Python API. In order for add-ons to work correctly with the newest version of the API, developers need to make the necessary updates to their code.

To check the changes of the new Python API version, you need:

  1. On the official Blender website, go to the daily builds page and click the “New Features and Changes” button.