Two notes
1) You have to understand "Patterns of Force" - the British Empire let us say historically did A,B and C using 90% of its available strength. Now to do D would require 25% of its strength, i.e. more than it could simply use from its reserve. Therefore part of A,B, or C is going to have to be sacrificed, not necessarily removing them completely but allowing only a partial resolution there.
2) As an example, Buenos Aires and the area around it, including up into what is now Uruguay. Britain invaded this area, and held it for a while. In order to hold it long-term, and thus make something colonial out of it, it is going to need to bring in substantial reinforcements. It does not have enough men "spare" so something else at the same time is not going to happen, or will only partially happen. Maybe the Cape is given up, or Ceylon? Or the wars in India are not pursued to a victory?
3) Sometimes though, a victory is won and a place held but given up in the peace agreement. You could look at Bencoolen/Sumatra as an example - there is no real reason why after some forty years, this Presidency should be abandoned to the Dutch. But holding on to it would require a reserve of political capital, or a trading of political capital from elsewhere.