This is an amazing idea and would help everyone.
We as a business could easily up sell by offering the customers items which are not compulsory but optional. Customer could then approve or decline the optional items only, without having to contact us, requesting for x amount of optional items to be removed and then we have to revise the estimate and resend it.
There are many other CRM's doing this already.
Please implement this
I have just asked exactly the same...
Its a great idea and like some other members mentioned many other softwares already use this.
RepairShopr PLEASE HAVE A LOOK AT THIS