Filter CIs by owner

Guys,

I want to create a new comfill filed own.cis in probsummary table and add it to the im.incident.subform.main.

By pressing the fill button of own.cis it should only visualize the CIs that are assigned to the person who opened the incident ticket (operator.id).

Also there is the out-of-the-box field there - logical.name whici is visualizing ALL CIs. Two fields should NOT have any relation (independant from one anohter).

I tried several ways to achieve that through link records but I would appreciate your comments around this.

Many thanks in advance.

BR,
FG