How do i load my .schematic file while making a structure?

Issue Description :

So i try to make a "Custom Structure" but i cant seem to load my ".schematic" file, I try these to make it appear on the "Structure to spawn" option (i think its for me to load my schematic right?) :

• I put the schematic file in the directory (BTW i 'm new to M Creator so if these solutions to the problem are [kinda] stupid i 'm sorry XD), Nothing still same
• I put the schematic file in the "Structures" folder which is in the "user" folder, Nothing Happens again
• and the easiest solution is to look it up on YT (YouTube, If this person doesnt know that), Like yeah i should be watching 1998 instead really or watch another topic that is COMPLETLY different than what i want.

So after that is out of the way does anyone have a solution to this? Please, Reply to this after reading, Tell me your solutions and what to do to load the .schematic file I 've tried everything and it's still showing me that beautiful blank white box when doing everything just nothing, Please Please Please, give me a solution to this for anyone thats reading this