I want that too!
However, the issue is that it would require the creation of a new HTML-handling template within the Client's Interface itself. I've asked about this on a predominantly Russian forum and this was their answer. Do let us know if you find a way, the easier - the better! 😄
I want a Window that can be resized based on the html sent from the server.
For example sending the string "xWidth=200;xHeight=350" at the top of the htm would tell the client to open the NPC window with said proportions.
Anyone have this implemented?