How to persist contribution on left bar

Hi,
I create a contribution to the left bar like other existing items explorer search etc, I add a command to the edit menu to display my item, and I want to debug my contribution.
My problem is that every time start debugging, my contribution is not displayed in the left bar, I need to show it by menu command, Is there any option that needs to be set to make my contribution always shows in left

@wss thank you for the discussion, if you’re looking into adding your contribution by default to the left sidepanel (when no layout data exists yet) your contribution can implement FrontentApplicationContribution.initializeLayout.

For example (how the explorer is displayed by default):

Thanks,That is OK