Using python TDSDK to merge two rotation transform items in MODO. The assumption is that the 2nd item is zero rotation one so effectively this removes zeroed rotation from an item.

mergeTransforms.py

import modo

scene = modo.Scene()

i = scene.selected[0]
l = modo.LocatorSuperType(i)

rot = l.rotation

transformsStack = [xfrm for xfrm in l.transforms]
transformsStack.reverse()
	
for n, xfrm in enumerate(transformsStack):
	print xfrm.name
	if xfrm == rot:
		if transformsStack[n + 1].type == 'rotation':
			scene.select([transformsStack[n + 1], xfrm])
			lx.eval('transform.merge rem:1')
			break