Aloha V,
Here is one approach.
Select the track and then use the ‘List Edit’ function.
It will show you everything that is on that track.
All MIDI info will be shown.
Then use the ‘Focus’ field to find/change/delete all Program Change messages.
Tip:
Very often these messages are at the beginning of the project.
But they can also be inserted at any position in the track.
So you have to look at the complete track to get them all.
That’s where the ‘Focus’ /‘Event Types and Data1’ part can be really handy.
The ones I hate are Pan and MIDI volume messages.
But at least there is a Logical Preset to easily get rid of PG Change and Volume.
Good Luck!
{‘-’}