Which (ITV2000 or 3000) does SMC recommend if we want to deliver pre-set pressure only?

SMC can offer the 4 or 16 preset output type as standard.
The ITV#-40# 4 preset pressure can be achieved via ON and OFF combinations of S1 and S2.
The ITV#-5# 16 preset pressure type requires S1, S2, S3, S4 input combinations.