Yes - that should work, to be fair. Make sure the ambient slider on the Roger program (within the App) is moved all the way to the right.
Also within Target, there is a setting that may help. This setting is called “Adaptive microphone behaviour”. This has 2 choices - standard adaptive or dual adaptive.
With standard adaptive, which is the default, as the noise level increases, the Roger signal adapts automatically, up to +20db while the hearing aid mic is unchanged.
However, with dual adaptive, as the noise level increases, the Roger signal increases automatically - up to 10db, while the volume on the hearing aid mic is decreased - up to 10db.
I have read posts in the past on here where someone said they got better results setting it to dual adaptive, so that might be worth a try.
I have just taken a look at Target again. Apologies, there is a car program under the Automatic programs, and it does have sliders for “Noise Manager” - which can be set from off through to 20. As well, there is a slider for “Soft Noise Reduction”. These settings can also be applied within the Roger Direct program (which controls the Roger On).
So there are some definite settings worth playing around with.