my company sells electronic systems.  They can be configured in various ways, and I need to be able to select products and different quantities for each product and have them totaled into the Amount field.

I've seen several posts about this kind of functionality and it seems that it should not be a major effort to implement unless the file structure has been set up poorly.

Am I wrong?  Is there any schedule for having something like this implemented?

I thought first that a lookup field should be able to handle summing of the Product prices, but it does not appear that a formula in Potentials can use data from another (i.e. Product) file.