Just in case, if by “can be installed only once”, you meant you have been given (or sold) a protected version of an indicator created through the “export” PRT tool with maximum protection settings (code can be imported only once, can’t be modified, can’t be duplicated), then I wouldn’t assume a future template export capability would override such unique usage protection. We won’t know for sure until we test it in next version…
But if it’s not what you meant, don’t worry that was just me reading too much into it…