I apologize in advance to the old-timers for the noob question:
The kangaroo used for the #125 range is looking for solutions for only one public key in a given range, or is there a way to specify multiple public keys at once?

If you search at a known address using the appropriate programs that simply do a sequential search of all addresses, for example KeyHunt, then you can specify many addresses at once.

But is it possible to do this in a kangaroo, which has a different principle of operation - by placing a list of public keys so that the program looks for a solution simultaneously for each of the keys?