Hi Lindy,
Thats ok, simple projects get more attention!!
How far away are the two motors, and are they together?
This dial that you turn, ...
is that to make the motors face different ways ?
Those 'input selectors'
all that come to mind for me are the dip switches,
thats those tiny little ones to set the settings.
(they are not made to be used very often in their
life, the settings arent expected to change often!)
If you mean those ones, you would have to get stouter
versions.
Please describe this in more detail.
Start with what you want as an end result.
Cheers, John