Uploading Assets

I have been vetting this program for a little bit now to see if I want to use it in my classroom but one of the major issues for me so far is that I cannot import assets. In particular, I would like to be able to customize and or import maps for the quest layout. I am social sciences teacher and the quest map could actually be quite useful for illustrating real geographic concepts. The maps you have provided, while aesthetically pleasing, are not useful in those terms.Further, allowing the community to import assets could save you some development costs while providing increased functionality for teachers. Matter of fact, in that spirit, I would suggest taking a look at the design of the website Roll20. I have considered trying to use it in my classroom but I have some concerns about the content students might try to bring into it.