Transition Duration Time Preset

Is there a way to preset transition time to a unique value for various transitions. For example I’d like to be able to preset the timing for Fade to 1.5 seconds and preset Dissolve to .75 seconds and have those times be applied each time I used them for a slide. At present the time is set mostly at 1.0 but does on occasion change to a value I’ve used in the past but eventually goes back to 1.0 for the initial time for the transition.

When you add a new slide to your slideshow the last changed duration is used for the new one. Keeping this separately for each transition seems a quite good improvement form me.