The H-Factor

Need to 'hide' pipe diameters or lengths for a pre-approval plot? How about hanger lengths?

HydraTools->Modify-AttributesHide Attributes (HAT) can be used to turn off all kinds of things associated with HydraCAD – just look at the option on the dialog box:

After choosing your option, you will be able to select which items to apply the hide to, that way you can have a mix on your drawing

To show them again, just pick Unhide and repeat.