Hi Gary, If you want to edit the dimension (parameter) value, you can select the feature in question from the model tree or double click on the feature in the graphics window. The best way to select the object is to move your mouse over the feature in the graphics window and you will see them highlight as you pan your mouse. Once the right feature is selected, double click on it. The dimensions used to create the feature will be displayed. Double click the number of the dimension. DO not click the line or arrows...just the number. You will see a text-box display where you can enter the new number. Once finished, click enter to accept the change. Now you will see the value and arrows are green. The model need to be regenerated to update the value and the model. Click the regeneration icon from the top menu. The model is updated. IF you are not clicking on the number, but in space, the dimensions will disappear. Does this make sense? Mark
