Add +32/-32 (when time gird=4) button in Pattern properties > Number of lines

[sk0]

I often make long patterns (such as 768 and 1760 in my latest project) with duplicated controller events in order for a song to be played as intended from everywhere.
To quickly tell the exact pattern size I want is difficult for me; most of the time I have to use a calculator and do trial and error. Therefore, buttons for increasing/decreasing a number of lines will be much helpful.