Ability to edit the path of an exe in menu entries

According to the support page, you can add other apps top the menu. But they will only be picked up/ displayed by the menu if they are located in the right place:

X:/PortableApps/Foldername/Application.exe
where X is your drive letter.
You cant manually edit the path and make it look for the exe one folder deeper.
You can either change put the exe one folder up or create a stub launcher that will just launch your exe one folder below. For that you'd have to understand a bit how the launcher works.

As far as I can tell XMind shouldn't need it's exe to be a folder deeper than normal, so why does your "portable"(ish) install of XMind have "its exe 1 directory deeper"?
Could you perhaps give us a visual of (the pertinent parts of) your setup?
something like the following:

X:
+---PortableApps
--------------------------------------------------------------
 Begin Approximation of what a non-portable-app that's been
 dropped into a PortableApps Folder Structure could look like
--------------------------------------------------------------
|   +---Portable(ish)AppName
|   |   +---AreThereOtherFoldersAtThisLevel
|   |   +---WhatAreTheyCalled
|   |   +---WhateverYourOneDeeperFolderNameIs
|   |   |   |   ExecutableFile.exe
|   |   |   |   z~AreThereOtherNecessaryFilesHere.xxx
|   |   |   |   
|   |   |   +---AreThereOtherFoldersAtThisLevel
|   |   |   |   |   AreThereOtherNecessaryFilesHere.xxx
|   |   |   |   |   
|   |   |   +---WhatAreTheyCalled
|   |   |   \---z~AreTheyNecessary
|   |   \---z~AreTheOtherFoldersAtThisLevelNecessary
|   |       |   DoTheyContainNecessaryFiles.xxx
|   |       |   
---------------------------------------------------------------
 Begin Example Of Standard PortableApps.com App File Structure
---------------------------------------------------------------
|   +---AppNamePortable
|   |   |   AppNamePortable.exe
|   |   |   
|   |   +---App
|   |   |   +---AppInfo
|   |   |   |       appicon.ico
|   |   |   |       appicon_*.png
|   |   |   |       appinfo.ini
|   |   |   |       installer.ini
|   |   |   |       
|   |   |   +---DefaultData
|   |   |   \---AppName
|   |   |   |   +---AreThereOtherFoldersAtThisLevel
|   |   |   |   +---WhatAreTheyCalled
|   |   |   |   +---WhateverYourOneDeeperFolderNameIs
|   |   |   |   |   |   ExecutableFile.exe
|   |   |   |   |   |   z~AreThereOtherNecessaryFilesHere.xxx
|   |   |   |   |   |   
|   |   |   |   |   +---AreThereOtherFoldersAtThisLevel
|   |   |   |   |   |   |   AreThereOtherNecessaryFilesHere.xxx
|   |   |   |   |   |   |   
|   |   |   |   |   +---WhatAreTheyCalled
|   |   |   |   |   \---z~AreTheyNecessary
|   |   |   |   \---z~AreTheOtherFoldersAtThisLevelNecessary
|   |   |   |       |   DoTheyContainNecessaryFiles.xxx
|   |   |   |       |   
|   |   +---Data
|   |   \---Other

I had the same problem. I have a few apps which run without installation but their *.exe is located in a subfolder like "minetest/bin/minetest.exe". So the launcher didn`t find it and added it to the launcher menu. My workaround:

- download "Bat 2 exe converter"
- create a new *.bat in the rootdirectory of your app (in my case: z:\minetest\NEWFILE.bat)
- open it with a texteditor and type "start location/of/exe" (like "start bin/minetest.exe")
- save
- open bat2execonverter
- locate your self created bat-file (if you don`t change the save-path it will take the same location like the *.bat file has)
- assigne a own icon (optional)
- compile

Now you can add the new created *.exe via "renew/reload symbols" (don`t know how it is called in the english version of the launcher, i use the german one) to the menu.
Like that, you can now add all *.exe to your menu, no matter how much subfolders there are.