sign
emask

Other things noticed:

1. When I make text active and right click on it without moving the mouse! the activness disappears and I cant do actions with it. But when I make it active, move mouse! and right click, everything is fine.

2. When I write a function/value etc sometimes SED displays this little description. Its exactly one line down and even when I click on it nothing happens, I can't click on that lower row position (in order to edit something on that position) where that description is shown
It's quite annoying. I need to get rid of that description line first and then I can click on position where it stood in my way earlier.

3. Syntax check doesn't work at all... pressing F6 doesn't do anything and cant see any errors in Syntax Checker Results tab.

4. SED Auto indent makes funny things:
When I press Enter to a new line it sets the text cursor correctly to the indent position, but when I write } It jumps in the beginning of the line and I get: }@@@@@@