Hi @Glen,
The comments seem to have messed up. So, I will try to answer all your questions.
1. To make homepage take three-column and other pages take default Layout( as selected in Theme Options ), add code given here: http://pastebin.com/Nb8dHKVi in your child theme’s functions.php file.
2. Further, in Lucida, I don’t see how to apply the ‘before-content’ to an individual page. The only option seems to have it apply globally by putting something in that sidebar. And for all the sidebar options available, the ability to apply them a page is indeed very limited to only the organization listed in theme options/layout picks.
For this, you need to find a suitable plugin like JetPack Widget Visibility, or something similar.
3. For instance by choosing the ‘three column layout’ (secondary, content, primary) to appear on the home/blog page (my default) then the layout options for any other page will not replace the ‘secondary’ sidebar, only the primary sidebar.
And if I chose for a particular page just primary/content to attempt this, then no optional sidebar can be applied at all. Am I missing something here.
I am not quite sure if I understand this correctly or not, but the issue about secondary sidebar should be solved by the answer in point 1 as it will not be shown in other pages.
Not about other sidebars, If you put something in Optional Page Sidebar, then that sidebar will be shown in place of Primary Sidebar in Page only. Same with posts and homepage sidebar. This only works for Primary Sidebar and not Secondary Sidebar.
Regards,
Pratik