A modular control apparatus for actuating hydraulic valve systems comprising: - an actuating section including a tilting control member about a hinging point and a plurality of control rods arranged about the hinging point and provided with a pusher configured to interact with the control member as a result of the oscillation thereof about the hinging point so as to translate the control rods in the longitudinal direction; - a sensor section including a plurality of sensor members for detecting a movement in the longitudinal direction of said control rods; - an auxiliary section comprising a blocking device, capable of individually blocking in the longitudinal direction each of said control rods, or a haptic device, capable of providing the user of the control apparatus with a feedback as a function of the displacement of the tilting control member, said auxiliary section comprising a first and a second connecting interfaces (41, 42) through which it can be connected to the actuating section and the sensor section, respectively; wherein said actuating section comprises a third connecting interface through which it can be alternately connected to the auxiliary section or to the sensor section so that the sensor section can be directly connected to the actuating section, detecting the longitudinal movement of the control rods also in the case that the auxiliary section is not present; wherein the actuating section, the auxiliary section and the sensor section comprise a respective casing (1A, 2A, 3A); characterized in that said control rods project from said actuating section and are shaped so as to be insertable into respective holes, which are defined in said sensor section, within which the sensor members act to detect the movement in the longitudinal direction of the control rods when the auxiliary section is not present. - an actuating section including a tilting control member about a hinging point and a plurality of control rods arranged about the hinging point and provided with a pusher configured to interact with the control member as a result of the oscillation thereof about the hinging point so as to translate the control rods in the longitudinal direction; - a sensor section including a plurality of sensor members for detecting a movement in the longitudinal direction of said control rods; - an auxiliary section comprising a blocking device, capable of individually blocking in the longitudinal direction each of said control rods, or a haptic device, capable of providing the user of the control apparatus with a feedback as a function of the displacement of the tilting control member, said auxiliary section comprising a first and a second connecting interfaces (41, 42) through which it can be connected to the actuating section and the sensor section, respectively; wherein said actuating section comprises a third connecting interface through which it can be alternately connected to the auxiliary section or to the sensor section so that the sensor section can be directly connected to the actuating section, detecting the longitudinal movement of the control rods also in the case that the auxiliary section is not present; wherein the actuating section, the auxiliary section and the sensor section comprise a respective casing (1A, 2A, 3A); characterized in that said control rods project from said actuating section and are shaped so as to be insertable into respective holes, which are defined in said sensor section, within which the sensor members act to detect the movement in the longitudinal direction of the control rods when the auxiliary section is not present.