Add indicator for hidden Then or Else block that it contains some commands or not

In "If else", "Complex If else" and "Multi-value if else" advanced commands is ability to hide/show "Then" and "Else" blocks using -/+ buttons which is useful for hiding empty blocks to improve readability. When a wizard is reviewed by other user every block must be reopened to check if there is really nothing in there.

It would be awesome if there would be an indicator (e.g. * sign) when hidden block contains any command. It might also be done another way: add "empty" or "do nothing" when there are no commands in hidden block.

I attach example how it could look like for empty and nonempty block.