Yes, as long as you only use a maximum of two travel days in your country of residence you can travel as much as you like on any route. 

Dobry den

IN your own country you are only allowed 2 travel days, for the trip OUT and IN-does not need to be very first/last even. IF you have a pass for long time and want to return home more as once, then you need to buy normal tickets to/fro border points-or use bus or plane or whatever.

YOu can use the pass as you like-also for various daytrips out of a city you stay in for a while (and come back same day and do another destination tomorrow)-as long as you use the trains of the companies that accept passes.

ONLY today there is still the birthday discount of 50% for passes for 1- 2 -3 monthes-CD in their INTern offices can also sell you that as paper pass (but then have to state startdate)