I am specifically trying to install "Coloc 2" plug-in from Fiji and having trouble. I understand the basic steps for installing a new plug-in, which is copy/pasting a .java or .class file into the "plug-in" subfolder in the ImageJ folder > then drag/drop the file to the ImageJ window. However, how do you install a plug-in which has not just one .java (Coloc_2.java) file but folders and folders of .java files (the statistical analysis etc). You will see this if you download it from here https://github.com/fiji/Colocalisation_Analysis. Can some one help with the step by step instruction on how to install this kind of plug-in?