Controlling Box Sizes
Open Plan calculates the overall size needed to display an activity box based on criteria specified in the Network Preferences dialog box on the Box Layout tab when applied to the field values for that activity.
After an activity box has been manually resized, the new custom size will be saved with the view. This may be changed, however, by right-clicking the activity and choosing Dynamically Size Box. If you wish to change all custom-sized boxes in the view back to dynamic sizing, right click an activity and select Dynamically Size All Boxes.