The only options for pedal markings I seem to be able to find are for fully sustained pedal. I'm looking in the drop down menu "Lines," and in the "Symbols" menu. The lines that are available end at the end of the system, and do not extend into the next system--nor can I "interrupt" them with half-pedal (^) marks. To my knowledge that's the standard way to write 1/2 pedal.
Is this feature available somewhere I am not looking? Is there another way of writing 1/2 pedal that is possible in MuseScore?