How to get coordinates in file name from rastertiler?

I'm looking for some help on what I am sure is a common problem hwoever being new to the software I'm not too sure what the correct terms are.

I am using the RasterTiler to split a large DEM into smaller tiles and write them to a new format. This is working fine but I would like to have the a coordinate of a corner of the raster written to the filename of the output. You've probably seen similar below, which is what I'm trying to achieve:

For reference, this is what my workspace set up looks like:

Thanks for your help getting me to understand this new software.