Hi I want to create a combo box and I want it to list values from a specific
column.

I'm making a price list so that I can use a filter process to get the right
product. In this case it's for printed envelopes

Every value apperas several times and I want it to filter the values.

Lets say I choose the size "A4", I want it to choose all rows with "A4" i
column A and then I want to be able to add a new combo box that lists the
values in column B, lets say it's the number of colours on the print.
"2-colours", then I want it to list all A4 envelopes with a 2-coluur print.