I was previously able to do it when I was running the version of GMS2 that I downloaded from the site, but since I downloaded it on Steam, I cannot drag files from the file explorer, such as sprites, into GMS2 to import them. Running Steam and GMS2 as Administrator does not solve the problem, and I cannot find anything online to fix this that does not involve this solution. I'm kind of a newbie so maybe I'm missing something. I have the latest version and runtime installed, and I'm on Windows 8.1. Thank you for helping.