Commonly used coordinates question for reference Station

All right so quick question regarding the rtk reference station.

In a software settings on my phone or tablet, when I create a commonly used coordinate and save it, can I save it and give it a name? If so when I call that up again and place the base station antenna at the same location and then load it will then begin broadcasting corrections like before when I set the initial base location and saved it?

Second question, can I do this without being connected to the internet so it’s just using an average or single use setup for the base?

Thank you so much for your help