Hydraulic control block for controlling the supply of a pressure medium to a hydraulic cylinder (6; 8) of a hydraulic axle, wherein the control block has a generic hydraulic switching structure from which, for selective supply of pressure medium to hydraulic cylinders (6; 8) differing in terms of their number of piston surfaces (n=2; n=3), specific hydraulic switching structures (A, B; E) are selectively configurable, having a first and a second supply interface (10, 14), the first of which is fluidically connectable to a high-pressure side of a hydraulic machine of the axle and the second of which is fluidically connectable to a low-pressure side of the hydraulic machine, and vice versa, and having a first working flow path which is fluidically connectable or connected to the first supply interface, having a second working flow path which is fluidically connectable or connected to the second supply interface, and having a third working flow path which is fluidically connectable or connected to the first supply interface parallel to the first working flow path, wherein at least one first working connection (30A, 30E) branches off from the first working flow path, at least one second working connection (36A, 36E) branches off from the second working flow path and at least one third working connection branches off from the third working flow path, and having a valve in the third working flow path, via which the latter is selectively blockable or openable, and having a connecting flow path via which the first working flow path is fluidically connectable or connected to the third working flow path in a portion of the third working flow path between the valve and the third working connection, characterized by a releasably arrangeable or arranged closure means, via the selective arrangement of which and via an associated, at least sectional hydraulic closure of a flow path (12, 42) configured in the control block, one of the circuit structures (A, B; E) is configurable or configured, wherein the closure means is releasably arrangeable or arranged so as to be accessible from outside the control block, and having a respective receptacle (44A, 44E) for a closure means in the first working flow path and in the connecting flow path, wherein the closure means is optionally arranged in only one of the receptacles (44A, 44E), wherein, in a first configuration (A, B) of the circuit structures (A, B; E), the third working connection(s) are/is closed and the closure means is arranged in the receptacle in the first working flow path, wherein the receptacle in the connecting flow path is free, and wherein, in a second configuration of the circuit structures (A, B, E), the receptacle in the first working flow path is free and the closure means is arranged in the receptacle in the connecting flow path. characterized by a releasably arrangeable or arranged closure means, via the selective arrangement of which and via an associated, at least sectional hydraulic closure of a flow path (12, 42) configured in the control block, one of the circuit structures (A, B; E) is configurable or configured, wherein the closure means is releasably arrangeable or arranged so as to be accessible from outside the control block, and having a respective receptacle (44A, 44E) for a closure means in the first working flow path and in the connecting flow path, wherein the closure means is optionally arranged in only one of the receptacles (44A, 44E), wherein, in a first configuration (A, B) of the circuit structures (A, B; E), the third working connection(s) are/is closed and the closure means is arranged in the receptacle in the first working flow path, wherein the receptacle in the connecting flow path is free, and wherein, in a second configuration of the circuit structures (A, B, E), the receptacle in the first working flow path is free and the closure means is arranged in the receptacle in the connecting flow path.