I need two plug-ins to be permanently active: Snippets (in the left side of the window) and Open Documents (in the bottom of the window).

There are no problems with Snippets: the plug-in is permanently shown at the left. But I do not know how to force the Open Documents plug-in to be permanently shown in the bottom of the window.

I go to Tools > Plug-ins > Customize Plug-ins..., select OpenDocuments, click Properties, then select Custom Bar Position: Bottom.

Then the Open Documents plug-in appears in the bottom of the window. But it is not permanent: for example, if I exit EmEditor and then open it again, the plug-in is not shown in the expected place (it disappears). Is it possible to prevent this from happening?