A small Create addon for Minecraft 1.20.1 (Forge / NeoForge) targeting Create 6.0.8 that lets the Schematicannon skip blocks.
How it works:
Create's Schematicannon outputs the required blocks and material onto a clipboard. This mod gives you the ability to prevent certain items from being placed by the schematicannon using that clipboard.
- Insert a blank clipboard into the Schematicannon.
- Take it out and cross-off the blocks you want to be ignored with the red cross.
- Insert the configured clipboard back into the Schematicannon.
- That's it! Fire-away!
Pro Tip: Craft the clipboard in an empty crafting grid to clear clipboard.
Images
Addition of the red-checkmark to prevent placing of blocks/item/entities.

Regular Create Schematicannon


