Community Tip - Did you get called away in the middle of writing a post? Don't worry you can find your unfinished post later in the Drafts section of your profile page. X
When defining symbol as templates user can select sketches containing symbols (e.g. GDT, surface, welding symbols).
These symbols lose their functionality, user can only define texts from the symbol as parameters but dont have full control about the original options of the contained symbol.
Defining the sketch as sketch template also does not keep the original symbol.
It would be better to keep original properties (functionality) of the contained symbols and later edit them using the edit symbol properties dialog.