Space key as last used command

[emil]

Hi, at first my Inventor was "setup" that if you used the key "Space" it always used the last used command. It was very useful and helped me a lot. But sometime it disappeared and now i dont know how to fix this function again. Anybody who has an idea?

For exampel, I have an assmebly open and starts to make "visability" command at items so they disappears. The first time i have to use the right mouse click and choose from column. But later on its just to press "Space" key and the visability command makes the selected part disappear just by pressing space key.

Please help me!

Thanks

[johnsonshiue]

Hi! I guess it might have something to do with command transaction prerequisite. Some command can only be enabled when the selection is not empty. For example, Visible command is enabled only when a surface body or solid body or a sketch is selected in the drawing.

Please share a workflow that can lead to disabled Space key. I would like to understand it better.

Many thanks!