Text Docs

Hello everyone, 

I am compiling  a text report (under "Text Docs") in gINT. All my soil types are standardized and can be identified let's say by a variable called <<LITHOLOGY.GRAPHIC>>.  How can I make gINT to list all the unique entries of this variable? Is that also possible to make gINT calculate minimum and maximum thickness for each type of variable? Sorry for my English ... I hope I didn't confuse you. 

Thank you in advance, 

Ilia