Set speed override

want to do as follow :

Whenever EXT mode is selected the override speed need to set automatically at 10%

But this speed must be variable again by operator in EXT mode....

Please help 🙌

Thank you , but,

If this logic added as it is in sps.sub , that module directly goes in error.

(i.e. variable not declared)

Please describe in brief.

This logic is absolutely correct that i want 😃 , Thank you so much😊😊