Today I felt a little silly, so I made a hacked block which works well.
Drag it if you want and see the XML code for yourself!
how did you do this...
nevermind, you edited the xml
Yes, but I will go in-depth for no reason.
I created a bland block
[scratchblocks]
2d list [a] [b] [c] @addInput :: list reporter
[/scratchblocks]
and exported the XML, just to fiddle with it.
So the input contained %mult%s, where %mult means multiple inputs, and %s is the type you want to multiply.
So I thought, Whoa, this probably should work if i simply made it %mult%mult%s, right?
Well, long story short, it did!
I also made a multiple input greenflag...
Greenflag doesn't accept inputs, it's a symbol.
huh.