In iDrum, each pattern is made up of 64 steps. iDrum's default view is 16th-note division edit, but you can easily edit 32nd and 64th notes by using the Note Division View control:

Since you can only edit 16 steps at a time (because iDrum only has 16 step buttons per channel), the Note Division View Control lets you specify which 16 steps you're editing.

• 16 - 16th notes for the entire bar
• 32A - The first 16 32nd notes of the bar
• 32B - The second 16 32nd notes of the bar
• 64A - The first 16 64th notes of the bar
• 64B - The second 16 64th notes of the bar
• 64C - The third 16 64th notes of the bar
• 64D - The last 16 64th notes of the bar

32nd and 64th notes are useful for frenetic programming as well as 'special effects' such as flams, rolls and stutters.