I am pretty sure this is not possible from my attempts to do this but thought I would ask anyways. Is there a way to do a dynamic include base on the value of variable ?  The reason is that I have a file that contains data to build parts and the data file is getting rather large (almost 1 MB) and it would be nice to be able to split it up into a separate file for each part. So say the variable design equals "test" then I want to include the file "test.scad" Also does a large data file like this decrease performance?  I would assume the larger the data file is the longer it takes for it to be parsed?