We've all been there. Sleepless night the day before PI Planning. The only question in our head "What's happening if we lose too much time during Team Breakout because of the distributed setup? Will everything else go well?" In the end what's left is hope.
The piplanning app supports you in these times and helps you relax and focus on the most important parts of your role as an RTE. One of these is "Preparation". Good PI Planning preparation is half of the PI Planning.
As a Release Train Engineer it is important that you know what's going on in your PI Planning. Shane Harrison (-> watch the video) recommends RTEs to do something he calls "Gallery Walks" where the RTE walks around the room and just gets an overview of what is going on in the planning. In a distributed setting this is not possible. But with the piplanning app You can do it anyways. Simply jump through the different Team Boards and see the planning progress as well as identify potential challenges you have to address.
You may want to have stakeholders participate in your PI Planning. In a distributed settings with physical boards it's almost impossible that they can follow the planning progress. But don't worry. With the piplanning app you can invite them and give them read only rights so they watch the planning progress but they can't change anything on the boards by accident. This user is called the "Observer User" and he doesn't affect your license count.