When riding with a pace group, it would be very helpful to know where the pace bot is, but making its dot the colour of the pace bot, and on top of the other dots. The particular gains of this idea would be:
(A) when one group overtakes another, making sure you stay in the group you intend to.
(B) when you are hoping to catch a group, especially if it is coming the other way, getting advance warning of its arrival so you position yourself and get up to speed.