Pressmarks in Core are rendered on the fly. We do not place images that are stored in an internal location.
You should use the watermarks component to place the reg marks for the Esko Cutting table.
As a new user on Core, got it installed today i got a issue. In Processmanger i could upload my own Pressmarks.In Core it looks like there is only pre installed pressmarks. i have tried to find the folder where the pressmarks are without any luck.
I need a Black Cirkel 5x5mm as regmarks for my Esko Cutting table, so i can use Core to step up both print and cutting files. This saves us for a lot of work.