In the VBA editor of Office (ALT + F11), how do you comment or uncomment a block of code?
Or just click View, ToolBars, Edit. Then you can select a block of code and then click the Comment or Uncomment toolbar button to do everything in one click.
As an aside, you can Tab/Shift+Tab a block of selected text also. When I was a noobie, I didn't know that for a long time and would do them one line at a time.
Good Luck!