The idea from clownFace

before he removes he's app "VolumeSlider" from the store
I use to he's application and I perchased the pro version too .
and the moment he removed it I thinked about making a same application my self .
and boom the application exceeded the alpha stage and it's useable as a beta .



inside the app you can adjust what bars you want to activated and for what .
you can adjust the preformance of each bar alone .

preformance such as :
Bar Width
Bar Spacing
Maximum Value
Minimum Value
On Speed Boost (Beta)
On Speed Jump
Sensitivity
Time Delay
Distance Delay
On Change Toast


and you can set to defalut for spesific bar too

xda Thread :
https://forum.xda-developers.com/android/apps-games/ls-edge-controle-suggestions-bug-reports-t3893012