Change non-Steam game location for dialog

[deltwalrus]

When I add a non-Steam game to my system, the list of binary files in the window are almost all in C:\Program Files, and all on my C:\ drive. My non-Steam games are all installed on a different drive.

Is there a way to change a setting, registry key, or something to have this list look at a different location on my system as opposed to C:\Program Files?