Filter Parent based on Grandparent

I'm pretty new to filemaker and databases in general, and are strugglig with the following problem. I got a table for registering damage done to art prints. There is one table for a complete edition of a print (table 1), with a child table for every single instance of the print (table 2). For instance "Title" (table 1) and "52 of 250 (table 2). The table for damages is done as a child of "table 2". When entering information in table 3, it would be great to choose the name of the print from table 1 (the grand parent) first as a drop-down list, and then only get the related options in a new drop-down list from table 2 (the parent). There is probably a pretty simple solution to this, but I can't seem to figure it out myself.