If a project is already downloaded and installed, there is a "already enabled" indicator in the place of the "add to installation queue" link:

How about we turned this to a link to the project config page (if the project has one)?
- for already installed layouts, this link could be static, pointing to
/admin/structure/layouts/settings. - for already installed themes, we should be linking to
/appearance/settings/%theme_name%(if the theme has settings). - for already installed modules, we should be linking to whatever is in the
configure =entry in their .info files.
If the theme/module/layout is downloaded but not enabled, then show an 'enable' link that points to the respective project type manage page.
~~PR by @klonos: https://github.com/backdrop/backdrop/pull/1647~~ PR by @klonos: https://github.com/backdrop/backdrop/pull/2797
Recent comments
well @herb I cannot believe it, but the webform module was there in modules on the disc, but missing in the listed modules, so I delete the module folder, and downloaded it again. Then...
My Webform Worksheets have disappeared
The only thing I can think of is to make sure Webform module is enabled and that the content type that needs to contain the webforms has Webform enabled for it. Edit the content type and make...
My Webform Worksheets have disappeared
@yorkshirepudding, In the end I fixed it by deleting the config/active folder contents, copying the config/staging/ files into config/active, importing the database again and clearing the caches...
Importing the staged config throws an error: another field with the same name already exists