NetPoint is based on the Graphical Path Method (GPM®), where activities can be scheduled anywhere between their early and late-dates without the need for setting a constraint. If desired, this feature can be turned off and all activities pulled back to their traditional CPM early-start dates.
This could be helpful when drawing and linking activities rapidly. With GPM mode turned off, an activity will automatically be pulled to its early-dates once it’s been linked to a successor. Activities can be drawn as late as desired, without worrying about entering exact dates or fine-tuning positions on the canvas. All link gaps will automatically collapse to zero.
To change from planned-dates to early-dates, click the GPM icon 
in the toolbar. Activities are pulled to their early-start dates and the icon appears in the raised or off position. All drifts equal zero and all floats equal total floats.
To return to planned-dates, click the GPM icon again. Original dates and gaps will be restored only for those relationships which have gone unmodified.
NOTE: Any activities without any predecessors will remain on their GPM planned-dates, even if GPM mode is turned off.
NOTE: If GPM mode is turned off and the schedule is being updated, all activities to the left of the data date (or crossing through it) must have start and finish constraints applied before the data date is placed. Otherwise, the network (i.e. all connected activities and milestones) will jump to the data date (since this is where drift is calculated to) and be unable to be actualized. To set constraints globally for all necessary objects, see Setting Multiple Properties for Selected Objects.