is there a possibility to edit and save this list by the users or at least to add 500ft-steps to the picklist of cruising-altitudes? in VFR flying the usual cruising altitudes are 3500, 4500, 5500 …. according to the “Hemispherical Cruising Rule”, defined by even or odd thousands plus 500  depending on the magnetic courses; so it would be useful, to have the 500‘s steps in the picklist