And any indicators that you use for that template should be put in your /experts/indicators folder as well.
So are you trying to add a template or are you trying to add an indicator? Template files go to /templates/ and indicators go to /experts/indicators/. Then restart your platform. Add template to a chart via menu Charts->Templates->Load Template. Add indicator via menu Insert->Indicators->Custom.I have done this but it is still not showing in the list of indicators
on the mt4 platform
It won't appear in the list of indicators. After you copied the template to /templates/ folder, you have to load it in your platform via menu Charts->Templates->Load Template. Please see the attached screenshot: