Maybe I can help some. In EmelFM2 I suspect the icons might change depending on the view but at least in the single window mode I find myself in, the edit function is the 7th icon down on the right hand side. I was unable to change the permissions within EmelFM2 however I did change them using chmod in XTerm once I changed the direectory to the right path. Permissions on the platformHTMLBindings.xml file are -rw-rw- after the change.