Use these preferences when creating dissolves.
(a) Dissolve Render Mode box (b) Curve Type box (c) Dissolve Duration field
Dissolve Render Mode boxUse to set the default rendering type for dissolves created in the timeline. Note that you can change this when you create a dissolve.
Curve Type boxSelect hermite or linear as the default curve type for dissolves.
Dissolve Duration fieldSet the default duration for dissolves.