I have Windows 7 64 bit and FTM 2012 on this PC. I have several small individual trees for different branches of the family. I would like to add the small files to my mail FTM tree. Is it possible to open a second FTM on this computer so that I can open one file on that and have my main file open on the first FTM that I open? I would like to have these open side-by-side so that I can compare the information in both files and add what is different from small file to main tree. Hope this makes sense. I do have Version 16 so I could reinstall that on this PC to use for second file, but it seems much more simple if they are both open to the same version. Thanks for your help, BB