okay so here's the first finished version of beta v1.3! Next updates will focus on adding new features to the pmv editor. If you have any suggestions about anything feel free to dm me!changelogs:
added undo/redo (ctrl + z/ ctrl + y) logic for hitmarks and animation marks in pmv editor
added copy and paste logic for hitmarks in pmv editor (ctrl + hold mouse for group select)
animation marks can be streched horizontally to adjust their length (drag on ends of animation marks)
added waveform in pmv editor
added loading information for pmv maps
changed keyboard shortcut to skip to next media (D)
added keyboard shortcut to skip to previous media (A)