Cannot select any parameters? Cannot drag and drop nor search for them?

[webpro 31]

Cannot select any parameters? Cannot drag and drop nor search for them?

For instance, ADD LIST TO LIST, selected a list then can't do thing?

Can't select any parameters ex:  $SCRAPE ATTRIBUTE

What the heck have i done lol! Even if i try to search for it. I only see commands popping up.

Also, i don't see a drop down with a list of all parameters options (menu on the left) when i go over PARAMETERS but works fine with commands.

version 6.3.9