How to create a responsive and BUKRS-filtered Search Help (F4) for G/L Account?

I am currently working on a custom ABAP report and need to create a Search Help (F4) for the G/L Account on my selection screen. The F4 help must be fast/responsive and strictly filtered based on the Company Code ( BUKRS ) parameter that the user enters on the same selection screen. The Issue : I have tried a couple of standard data dictionary references for my SELECT-OPTIONS , but both have drawbacks: Referencing BSIS-HKONT : The search help appears, but it is highly unresponsive.