thanks for the review. I have updated the add-ons to show the hidden entries in version 9.6.
Also, email server options are now provided (still in beta, but should be working other than things like line break.)
Re-update: I could not reproduce the showing of hidden entries when testing it. Please note that "hide" feature does NOT really work in the Map view as currently design. However, when switch to list view, it will hide the entries as usual. I will try to test more. However, there is a limit on how many posts are hidden for memory and performance reason. It however rotates, so you shouldn't see the 20 entries again right away. I have increased that to 6000 in the latest version 9.6. Please try to see if it helps. Also, there is a link to show the hidden entries again. Please follow the link in this add-on page to create a post in the support page. I will follow up with a few steps for troubleshoot this issue. Another thing, if you open multiple windows or multiple tabs of listings, and hide some of the entries in each, I can see the "hidden" entries are lost due to memory of one page override the memory stored in another page. So for now, please do not do expect it to work in multiple openning listing in a same time (tabs or Windows). This is a known limitation of the addons.