How to trigger SAVE button from viewset in View method

Hi,

I am changing the CONC_KEY field from BTSubjectG  entity based on the field ACT_STATUS in BTStatus entity both are in  in BT126H_APPT component.

when i click the button on overviewpage(viewset) this above change will happen. Now i am able to get the changes, But problem is when i click the button only status getting updated, but CONC_KEY field is updading if view is in Edit mode.

My requirement is instead of clicking SAVE explicitly after my changes  i need to trigger save automatically.

please provide any inputs.

Thanks

Ram