Modulation Plug-Ins : AIR Filter Gate : Filter Gate Controls : Filter Gate Gate Section

Filter Gate Gate Section
The Gate controls let you adjust the Attack, Hold, and Release amounts for the Gater step sequencer pattern. At the maximum settings, the gating provides a smooth morphing effect.
Attack
The Attack control lets you adjust the duration of the attack as a percentage of the step duration.
Hold
The hold control lets you adjust the duration of the hold (or sustain) as a percentage of the step duration.
Release
The Release control lets you adjust the duration of the release as a percentage of the step duration.