• Makes the player place a specified block (like via an actual right-click action) at a specified coordinate, if the coordinate is in reachable distance (4 blocks max??)
• The player does not need to have the block selected in the hotbar (having it in the inventory is enough)
• Does nothing if the player does not have the needed item in inventory

What does this mean? Like place a block on the players behalf or do /fill with a command?

I don't know yet :D Just random ideas that come to my head lmao

For features like this to only work in single player annoys me, I want to try it out in multiplayer, even if it requires the server to have FM and agree to the use of these action scripts in the config.

I mean that feature was more planned like a "set_block" thingy, not the player actually placing a block, but I realized now that this is already possible by just running a command via FM, so yeah, maybe I will change the idea behind this to "let the player place a block". Then it would not work in single-player only.

The whole "4 blocks max" thing is kinda limiting. As long as the server agrees to it, the client should be able to place blocks further away (if Minecraft even lets it).