Tropes need specific meanings. Various, unrelated meanings do not make a trope.
For example, imagine wanting to list how fiction plays with chairs. Chairs that are improbably cool, or wheelchairs with special enhancements. Instances where the chair's appearance sets up its eventual climactic role, or where the chair corrupts everyone near it.
Don't do this. Significant Chairs is not a trope. Though the examples have narrative significance, unlike people merely sitting on chairs
, they have unrelated significance. Group examples with those of similar significance rather than those involving the same items.
To group tropes related to an object or action, don't create an umbrella page where no supertrope exists. Instead, make an index.