When you go to the Open dialog box, EmEditor will open from the current folder, and the current folder is the same folder as the currently selected document. If you want to open from a certain folder, there are many ways to do this. You can use the recently used folder list. Or, you can right click on the recetnly used file list menu, and select "Open from this folder". If a file in that particular folder is already open, you can right-click on that tab, and then select the "Open from this folder".

I am not sure about Properties for All Configurations issue, but if you can reproduce ths issue, I will try to fix the issue.

Thank you!

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Yutaka Emura
Developer of EmEditor
http://www.emeditor.com/