it is a pure beginner question. I have created two custom fields (Brands and Material). Unfortunately, the other plugin manufacturer doesn't like to help me.
I would like to add these two custom fields to a template. Unfortunately, I am not that proficient in PHP and the like.
But that is a template for a specific plugin.
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I'm not sure what template you are trying to make edits. However, Toolset also offers Types Fields API using which you can display the custom post field using types_render_field() function.
Where I can find the specific key for my custom fields?
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You can find all your custom fields at Toolset => Custom Fields => Edit your desired custom field group and where you will find the custom field slug. Screenshot: hidden link