An arrangement of pushbutton switches with a programmable display that has a support structure with an assembly panel with openings for arranging there through an enclosure body of each push-button switch of the arrangement; a printed circuit board; and a shielding plate, wherein the enclosure body of each pushbutton comprises an appendix arranged through through-openings defined in the assembly panel, printed circuit board and plate; and a connector attached to the enclosure body that is opposite to and engaged with a connector of the printed circuit board, wherein each enclosure body is attached to the support structure by removable immobilizing means of said appendix with respect to said shielding plate, the immobilizing means comprising a nut with a coupling configuration to be coupled to a tubular shaft by a respective complementary coupling configuration integrated with or attached to the tubular shaft.