Illumine lets you edit the list of activities you can choose to post and update parents about. The ones that are not relevant for you can easily be disabled.
Go to profile and then go to enable/disable activities
Select the activities you’d like to enable, and deselect the ones you want to disable
Click on save.
In today’s activities under activities, you’ll see the activities you selected appear in the list, while the ones you deselected no longer appear there.