I've been adding a few waymarks lately and it occurred to me it would be nice if there were a way to link waymark entries across categories. For example, I enjoy stories of haunted locations and historic sites. Stories of hauntings generally aren't appropriate for the National Register of Historic Places category, and the information from the National Register isn't appropriate for the Ghosts and Hauntings category. Currently to see if a location falls in both categories I'd have to do two searches (or more).
What I'd like to see is an "Other Category Listings" link under Waymark Options. For example, if I were viewing a historic property in the National Register category I could click on "Other Category Listings" and see a list of waymarks for the same property in other categories. This way an individual could access all the information across different categories with one click.
A further refinement would be to allow entering waymarks in multiple categories. I realize this is not easy to implement due to the different requirements. Basically what I would like to see is a means to select which categories I would like to enter a waymark and be able to enter the coordinates and photo for that waymark, then be able to go through and enter the information for each category. Basically just a way to not have to search down several categories and re-enter and re-upload the same information over and over.