Women's Wear Fashion

Could you please confirm the following few questions below if its possible.
-Interms of Materials, can i request samples of a particular material before it being produced?
-Can i send shapes of the styles with small adjustments?
-Print and textiles, how does that work?
-Finally, I am more then happy to discus this in person, once you can confirm some information above, i will happily travel to istanbul to discus further over meeting.
Many thanks in advance.
I look forward to hearing yo