Here is a user command which will let you navigate easily to previous/next folder in one click (or two if using it from context menus).
Go to Settings -> Customize
In the command tab, go to "user" line.
Add this user command:
FolderSwitch
Template: CMD/A/K[NEXT,PREV]
Type: Standard
Go BACK UP
Select &CMD&
Go {f}
Now the user commands are set, you can go to "Context Menu" tab to set up the commands for all listers context menus.
Show the "Lister Context" menu. Right click on the menu, and select Insert New -> New Button
Edit the button with this code for previous folder:
FolderSwitch CMD=PREVEdit another button with this code for next folder:
FolderSwitch CMD=NEXTYou can also add this button to both "Lister ZIP Context" & "Lister FTP context" context menus.
You can set up a three button to make the commands available in one click if you prefer.