calendaricalicloud
For instance, I'm subscribed to 3 different sports teams calendar. Which is nice for me knowing when games are, but can be cluttering when I'm working. Now I know this is only 3 calendars so it's not a big deal to just uncheck them. But say I wanna add more.
Is there a way I can create a "sports" group or something and add them all in. I believe this feature used to exist, but now I'm on Yosemite and don't see anything like it.
When MobileMe upgraded calendars - it removed the group option. iCloud does not have a folder/group data structure.
BusyCal does let you create groups to manage your local view of iCloud (and other) calendars, but doesn't change iCloud's limitation to not have those groups appear on the server end of things.
Their blog is an excellent source to get clear and well prepared discussion on the changes MobileMe has made as well as how iCloud is different.
When the device is plugged into iTunes, look under the info tab, you will see an option to sync calendars, you can turn this off by unchecking the sync calendars box.
Best Answer
If I understand you correctly, then here is the way to merge multiple Sports Events calendars in to your iCAL (calendar) on your Mac.
First choose which ones (one by one) and use download -Save to your Mac.
Once you have them all downloaded, Open your iCal (Calendar) on your Mac.
Under File choose Import.
Locate the downloaded file and click Import. Repeat for other events calendars.
In my test the result is as follows.