Thank you but I had read that documentation that uses a new GK template package before seeking for support. The site I want to rename its template folder is live/online already.
I understood the instruction that I rename all folder names in the templateDetails.xml file. But I don't understand the 4th step (Rename the language file according to new name, for example, gk_new\language\en-GB.tpl_gk_new.ini). There is no "language" folder in the gk template folder where I can locate and rename the language file to "en-GB.tpl_gk_new.ini".
Lastly how will I repack the template that is already live and install? Thank you once again.