Sorry to hear you are having issues.
1. Auto hide is not working even though I check the setting 'hide tiles when not in use'. Basically, I activate the Tiles sidebar and it shows, but after I click a tile or click outside the Tiles sidebar the Tiles sidebar is not hiding. There should also be an auto hide feature where after some configured time Tiles sidebar should hide in addition to hiding automatically when it loses focus and hide after a tile is clicked.
Can not reproduce this issue on my system. Tiles hide itself without issue. Please try the purge and reinstall steps as mentioned here : https://forums.stardock.com/485902/tiles-support-faq#reinstalling
2. I cannot move/relocate the tab (for easy access) along the edge of the screen. It's position is fixed. I should be able to position it anywhere on the edge of the screen.
3. I think Tiles shows the last viewed page as default, but I should be able to set my own default page whenever I open or unhide the Tiles sidebar.
4. The pages navigation at the top of the sidebar is not user friendly and I have to scroll if I have more than 4 pages. I should be able to position the pages navigation to any edge of the sidebar (preferably on the left) so I can view all pages without having to scroll through the list.
I have forward your request to the Stardock Support Team for their review and recommendations. Please keep an eye on this thread for any updates. We really do appreciate your feedback, Thanks
Stardock Community Assistant.