In another thread the following issue came up.
Suppose I can push/pull/hold with Rego magic an object that's within the size limits of my magic (let's say a basic Individual, with no size modifiers); and suppose the object is solidly attached to another, larger object that would definitely be outside the size limits of my magic. Can I indirectly push/pull/hold the larger object by pulling/pushing/holding the smaller one?
For example, can I magically hold up a rope that fits easily within T:Ind, if a load that doesn't is hanging from it? Can I levitate the bottom of a large chest filled with gold coins, indirectly pushing up the whole chest, if the bottom would require no size adjustments but the chest as a whole certainly would (ok, I may need T:Part to target just the bottom, but that's a separate issue)? Can I hold a large horse in place by holding immobile its leather harness?
I'm particularly interested in:
a) canon references of what can and cannot be done in this sense (e.g. I vaguely recall some fyling castle from MoH where the only "flying" thing was a thin stone disc at its bottom).
b) problematic consequences of allowing or disallowing this "indirect action"
c) any elegant solution that "works", seems consistent with the RAW, and is easy to adjudicate.