I've found that the old timer experts on this forum or even experts with YouTube tutorials often don’t use these simple baked in methods of extending walls or drawing any item at an exact or relative location by using the x, y, or d or even a shortcuts.
I still see seasoned veterans drawing a line a certain distance then dragging a wall to snap to the end of that line and then deleting the unnecessary line.
Way to much work and less accurate. I only assume they learned these bad habits from a time when Archicad didn’t have these other more efficient methods.
Because I’m an absolute rookie and actually went through the beginner and intermediate courses on Archicad’s YouTube channel I learnt these good habits...but I’m still struggling with more advanced and seemingly endless features of this software.