How does vim’s nerdtree open a folder?

  question, vim

I am the folder opened by pressing: e path in nerdtree window.
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But then there was a problem
After jumping to that folder, the files opened with o will appear directly on nerdtree instead of the default editing window, and the opened files will not appear on MiniBufExplorer. how should this be solved?
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Your problem description is not very clear.
My personal use of nerdtree is as follows:
Map the NERDTreeToggle command to the key, and then press to open or close NERDTree;;
After opening NERDTree, use J and K to scroll up and down to select a file or folder. After selecting the appropriate file, press Enter directly to open the file in the editing area on the right. If a folder is selected, NERDTree will automatically expand the folder;
I wonder if it will help you.
By the way, I didn’t use MiniBufExplorer.