Hi! Here’s my 2 cents:
The technical term for this technique is “cross-pedaling”. Sometimes
it’s the most expedient way to deal with a pedaling problem. It almost
always involves the left foot on E or F pedals. I’ve never run across
an example where the right foot had to be on B. I’ll have to try it,
but it seems like it would be very difficult to keep the harp
balanced.
The notation for cross-pedaling is to draw a box around the markings
for the pedals that need to be moved with the foot that would not
ordinarily move them. In the event of simultaneous pedal changes,
“right foot” pedals are marked above “left foot” pedals.
I hope this is helpful. Cross-pedaling is a valuable resource.
Practice it a little, and it will soon become easy!