For images, follow these steps:

• upload to cubeupload

• go to the image link

• right click and select “copy image”

• go to the post you want and simply paste. Or if you want to be techy, you could upload through the api with an <img> tag

Admins already have an add image button though, see this post: https://wasteof.money/posts/61dc64bc59e4303b3f5d0bcf

I doubt he’s going to add an upload button, and probably not anything for files bc malware but the add image button seems very likely because its already ready