I just checked the package from NuGet to see if it works and I can confirm it does. Added same dynamic property and I can see the edit popup.
When you edit a page not using the on page edit mode, you will find a Tools dropdown just on the bottom of area with grey background. There you will find and option to edit dynamic properties.
There are some known bugs that I'll look into the next few days. I'll post a reply here when they are fixed and a new production ready version is up on NuGet.
Updated the code and package now. Version 1.1 of Geta.SEO.Sitemaps should be published soon on nuget.episerver.com. Tested it on an EPiServer 7 site MVC and verified it worked fine there. Let me know how it goes. Any issues, please log them here: https://github.com/Geta/SEO.Sitemaps/issues.
I've added a Dynamic Property to my site with the following settings but I can't edit the Sitemap property anywhere:
I've created a sitemap and run the Generate Sitemaps job.
Am I missing something or does SEO.Sitemaps not work with CMS 7 in MVC mode?