epdm properties what to do before hand

Hello, I looked at the SolidWorks help file, but it did not say anything

 

is it ok to have all the properties in the configuration tab?

If the custom tab has any properties the ones in the configuration tab will supercede them? is this correct like in a drawing that shows properties.

does the card read from the configuration or the custom tab?

I was trying to recall what the custom tab is used for in EPDM so that is why i am asking the custom tab on most of the files are blank and the properies are in the configuration tab.

we dont have epdm yet... so i need to have it set up correctly when i get it.

thanks

tim