Managing calendar filters
Go to the calendar by clicking on the "Calendar" button in the left hand menu, or by pressing the following shortcut: G then C.

You can set your filters in the drop-down menu called “Calendars” that is located in the top right hand corner.
Adding new filter
At the bottom of the list of filters, click on the Add new filter button and a modal window will pop-up where you can select multiple colleagues and/or resources.
Delete filter
Simply click on the arrow icon next to the filter you wish to delete and click on the delete filter button.
Activate/disable filter
If you wish to hide colleagues’ events just for a moment, you don't have to delete the filters you added for each of them. You can disable a colleague’s calendar by clicking the corresponding filter. To activate it again just do the same, click on the deactivated filter.