Create Selection field in CUSTOM CONTROL

Hello gurus,

Aside from ALV and Images, is it possible to create selection fields (i/o fields) in a Custom Control?

'Coz I'm tring to create a workbench with 2 panes (left & right).

Right Pane will contain my ALV Display.

Left Pane will contain my selection.

No problem with my right pane, it's working as expected. But can anyone assist me how to create my let pane (selection screen in a custom control).

BTW, I'm using custom control 'coz I'm using a splitter, and this splitter only accepts custom control.

SE80 is an example of what I want to achieve. But it's so hard to understand it's coding.