I've only started trying to change some features of an existing CiviCRM database in a testsystem (using CiviCases). So I am still a beginner, I excuse myself if this is a silly question, and any hint will be appreciated :)
I want to include a feature that will exclude all the activities with the grouping value "system" from the case view. Right now, the case view is spammed with activities not relevant to the users (for example, "Case type changed from ... to ..."). The activities are given this grouping value in a table called civicrm_option_value.
So I suppose I have to include some filter into the file /civicrm/CRM/Case/Form/CaseView.php, accessing each activity's grouping and testing it for "system". Can you give me any hint how I can access the activities' grouping value?
Thanks in advance, emma