You just double click "Biab floating transport.ahk" you can shortcut it to the desktop. I have asked PG many times for something like this either built in to Biab or have a scripts menu that will show all the AHK scripts in C:\bb\Scripts folder and run them from the menu.
You can add any other buttons you like to it, each button will run a BB menu item or shortcut keys

WinMenuSelectItem, ahk_class TBandWindow, , Play, Play Special, Play (with Generation)

so you can add any other function to it like Ctrl+F8 to generate selected region.

If anyone wants anything added just let me know and will update the script.

We can all wait in hope that PG will release something like this, but we all know that may never happen or happen 10 years down the track. It took me about 30mins to make.

Code
#NoEnv
#SingleInstance Force

I_Icon = %a_scriptdir%\bbw64.ico
IfExist, %I_Icon%
Menu, Tray, Icon, %I_Icon%

Gui, +AlwaysOnTop

Gui, Margin, 0, 0 

;MsgBox, %a_scriptdir%
Gui, Add, Picture, vleft gPlay x0 y0 w50 h40 , %a_scriptdir%\play_1.bmp 
Gui, Add, Picture, vleft2 gPlayGen x50 y0 w50 h40 , %a_scriptdir%\playgen_1.bmp
Gui, Add, Picture, vleft3 gPause x100 y0 w50 h40 , %a_scriptdir%\pause_1.bmp
Gui, Add, Picture, vleft4 gStop x150 y0 w50 h40 , %a_scriptdir%\stop_1.bmp


Gui, Show, w200 h40 
Return 

Play:
GuiControl, , left, %a_scriptdir%\play_2.bmp
Sleep, 500
GuiControl, , left, %a_scriptdir%\play_1.bmp
WinMenuSelectItem, ahk_class TBandWindow, , Play, Play Special, Play from Current Position - No Regeneration
return

PlayGen:
GuiControl, , left2, %a_scriptdir%\playgen_2.bmp
Sleep, 500
GuiControl, , left2, %a_scriptdir%\playgen_1.bmp
WinMenuSelectItem, ahk_class TBandWindow, , Play, Play Special, Play (with Generation)
return

Pause:
GuiControl, , left3, %a_scriptdir%\pause_2.bmp
Sleep, 500
GuiControl, , left3, %a_scriptdir%\pause_1.bmp
WinMenuSelectItem, ahk_class TBandWindow, , Play, Pause
return

Stop:
GuiControl, , left4, %a_scriptdir%\stop_2.bmp
Sleep, 500
GuiControl, , left4, %a_scriptdir%\stop_1.bmp
WinMenuSelectItem, ahk_class TBandWindow, , Play, Stop
Return

GuiClose: 
ExitApp