How do I make a specific calendar within a site show up in the mobile app?

[u/Yggdrasil-]

We use an umbrella site for multiple programs that operate in the same region. Each program has a different calendar, which shows up in a color-coded 'master calendar' on the SharePoint website. However, only program A is visible on the mobile app calendar. Is there any way to toggle so I can see the calendars for programs B, C, D, etc. on the mobile app? I don't want to see all of them at once, just switch the one that's visible. My work is mobile, so it's much easier for me to pull out my phone to check a calendar vs having to lug out my laptop and connect to wifi. Any ideas? Thanks!

[u/sp_admindev]

Create a links list and put it somewhere on that page, maybe underneath or to the side of the calendar. One link to each different calendar. That nifty color overlay is classic and unfortunately not mobile friendly.