Best way to prompt for a choice of location?

Hi, I'm essentially trying to prompt players and have there be an easy, graphical way for them to give me a location on the map in pixels, with or without another token. My current ideas for how to do this are: If possible, create a callback function for a ping from a player, which returns the top and left of the ping. Create empty, blank, clickable tokens in every tile any time I want to prompt them. (aka The Worst Idea I've Ever Had) Is there any way to do #1, or is there a better way to do this than #2? Thanks!

Well, depending on the situation, 2 isn't THAT bad. How about creating a marker on the map, and then have them move it where they want to go and trigger (either by running a command with it selected, or deleting it and catching the on:destroy event).

For this kind of situations, I use an empty character associated with a token representing a target. The empty character is controlled by all players, so that anyone can drag it and move it around on the map. In addition, when the token is used as a target for the API, I automatically delete it.