Cannot work out how to set the block the replacer module uses

Version

• Minecraft: 1.16.4
• Single Player or Multi Player?: Both
• Forge: 35.1.36
• This mod (QuarryPlus): 16.1.4

I didn't provide the way to set block for Replacer Module so I added it in v16.1.9.
I the version, just right click a block with Replacer Module, then the item is set in the module. See tooltip and chat massage.