would like an archive feature. may want to keep the message but not necessarily need it in my inbox..

it would be nice to have 2 different type of lock features.
1. be able to lock the message in your inbox as if it was pinned so it can't be deleted and it would push it down to the bottom of the list.
2. be able lock messages as if they are hidden. add a box to file the hidden messages so you can refer to them later. should be able to use your fingerprint, pattern or pin (password) to unhide them.