Slider bar left value can not focused?

Hello everyone
I am using lvgl-8.3.0-dev version building with lv_sim_visual_studio
What should I do to focus on left indicator object?
thanks a lot!

slider1

It’s not supported now with keyboard in lack of a good suggestion for a KEY which should change between right and left knob focus. If you have any idea, I’d be happy to implement it.

Anyway, internally slider->left_knob_focus = 0 or 1 tells which knob is focused. So you can listen to an LV_EVENT_KEY event on the slider and use a key of your choice to toggle the left_knob_focus flag.