open bookmark to panel

[srs06]

I see when I enable bookmarks in the Sidebery sidebar I get an "Open In" option to assign any bookmark I open to a given panel. It would be nice to be able to "Open In" from anywhere, which would then select that panel as the current one. It can currently be done in two steps: Select a panel, then start opening bookmarks. But if you then close all that panel's tabs, you're back with another panel as the current one. Perhaps the ability to select and/or stay in a panel even when it's empty (a setting for having to explicitly select the current panel rather than an auto-change when the current panel is empty) -- more or less being able to enter and leave panel contexts regardless of whether they're empty or not.