I am a home builder and every project create 3 schedules for one project. The 100% (actual planned time), 110% (schedule I show the client), and 90% (schedule that I ask my PM to shoot for).

Is there an easy way to adjust the 100% schedule larger or smaller by 10% w/o adjusting every tasks duration and w/o losing the original 100%?

Hi,

Not directly. You can use some custom fields (Duration1, Duration2) and create a formula to write a formula and show the longer and shorter durations. You could then either copy/paste the new calculated durations over the duration field - and then re-draw the Gantt chart.

let me know if you need more information or details.

Julie