We make an attempt to portray the current situation in the probabilistic combinatorics field, where the so-called generalized allocation scheme has been utilized. We give a series of limit theorems for sums of independent identically distributed non-negative integer-valued random variables that find their application in the generalized allocation scheme. We say a word about the phenomenon of transition of the distribution of sums of independent identically distributed integer-valued random variables from one lattice to another in the context of the generalized allocation scheme, and give several examples of how to reduce a combinatorial problem to some kind of generalized scheme of allocating particles to cells. This paper is devoted to the memory of Valentin Kolchin.