I was adding dimensions and tried to manually enter the osnap command (e.g. qua, cen etc.) via the keyboard.

This works well as selecting the 1st dimension point.

Selecting the 2nd point this way can be a challenge.

When the cursor moves to the next point, typing in the osnap command can do funny things sometimes.

For my understanding, the reason is a small text box that jumps automatically and cannot accept anything but distance values.

I also want to say that as a former AutoCAD user, I use the space key a lot as an enter key.

I am doing something wrong or there is some other issue?

Thanks 

Yaacov