Connecting SMD pin pad to GND copper plane

Hi,

I have all the components placed and routed on the board. Now for mechanical mounting purpose I have two SMD pin pad on the bottom layer(its 2 layer board). Now I'm supposed to connect this pin to GND plane (copper pour) using full contact. I searched through the forum and found few option to try but they didnt work. I have following questions.

- My mechanical pin is not assigned to any net name, so does that means I can not connect it to GND copper pour?

- Is there a way to assign a net name to SMD pin, if it doesnt not exist in the schematic?

Thanks

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