First bug: no way to activate existing lvm/luks partitions. Workaround start a live session and assemble those by hand (double clicking on the disk icon).
Second bug: "Ideally it would allow side by side as well as recovery options (such as reinstall while preserving /home)." is a duplicate of bug 1046779 and it is "WON'T FIX", as automatic partitioning recipes in these case are ambigious (do you want side-by-side inside crypt, inside lvm, resize lvm volumes or add new volumes. And some of these operations are currently not supported by the underlying partitioning technology - partman.)
First bug: no way to activate existing lvm/luks partitions. Workaround start a live session and assemble those by hand (double clicking on the disk icon).
Second bug: "Ideally it would allow side by side as well as recovery options (such as reinstall while preserving /home)." is a duplicate of bug 1046779 and it is "WON'T FIX", as automatic partitioning recipes in these case are ambigious (do you want side-by-side inside crypt, inside lvm, resize lvm volumes or add new volumes. And some of these operations are currently not supported by the underlying partitioning technology - partman.)