(This is a template, feel free to delete it.)
What's problem you are encountering?
I can't do this: 
Post a project example, link, or screenshot:
how is it not working? what happens when you click the block?
no, I mean I cannot recreate the blocks.
there are sprites a and b. sprite b has a sprite-local block. so you go to sprite a and drag out the 'of' block, set the second input as sprite b's name, and the first as the block. putting it in the run block, sprite a will run sprite b's block remotely.
sprite b script pic
sprite a script pic
I don't understand at all.
You have to fill the second input slot first, then that sprite's local blocks will appear in the pulldown menu for the first input slot.
thank you!