There is no way to set Defaults in h2x at present... all settings are set to Industry Standard so don't often need changing too much. There is a good workaround that is certainly helpful for having 'default' values in your BOM/BOQ (the current values are taken from an estimating handbook but the rates are pretty high - so we would recommend changing these to your own values from the merchant/supplier, or however you would like to calculate your pricing!) 

Follow the steps below: 

See also: https://www.h2xengineering.com/community/tutorials/saving-plant-and-equipment-between-projects/