Chaosmancer
Legend
Its a rule, which is what Hussar said didn't exist.
And as for guidance, none of the questions posed thus far are complicated.
So your problem is cruddy DMs. I believe we established that the last time we went over this line of argument, two or three pages ago.
After a point we're not actually saying anything new here, yet inevitably we keep going in circles and in fact I wouldn't be surprised if I allowed this to continue that eventually Id be accused, again, of believing there isn't a problem just because Im pointing out Improvise Action exists.
We've literally already been through all this already. Lets talk something else.
It is a rule the same way "roll 1d20 add your modifier" is a rule for how to ascend to godhood.
And the question IS complicated, by the factors you keep dismissing as only being done by crappy DMs. For example, you seemed perfectly happy to allow a 3rd level fighter to use a single action, some rope and stick to restrain five enemies forty ft away from the fighter... but not everyone is going to be okay with that. And in fact, I even have some reservations on the power of allowing that.
But you refuse to even acknowledge it, claiming it is solely bad DMs.