There are just 4 options for the right panel in the development mode:
- auto hide and show
- auto hide
- sync with opposiote panel
It´s very annoying when I want to scroll up or down the right panel (to edit pictures) and by an accident I click a bit right and the whole panel disappears. Why there is not another option:
– don’t hide ?
You can raise a feature request to add this feature to Lightroom Classic CC: Feature Request/Bug Report Form
You can set the option to "Manual" so that the panel will less hide out while you working in a develop module.