The current selection tools and methods are all over the board. It's a mix of Left and Right mouse selection in the various editors and even across different tools within the same editor. These all needs to be made consistent and to be carefully mapped to the Select button in the keymap.
- Ensuring all tools correctly use Select / Action input, such that Left / Right selection can be swapped at anytime
- Making all selection tool modifiers (add / remove) consistent.
- Prioritizing Selection Tools within Editors (box, circle, lasso)
This needs to all be done very carefully as we have a large number of selection tools in Blender (particularly in Edit Mode). Conflicts are quite common and easy to create. Unless there's a very good reason, all selection tools should be made consistent across all editors.
Note: this will be done in conjunction with T37417, to create a new alternate keymap initially, giving users a chance to test thoroughly before updating the default.