trying to set some parameters as optional in modelbuilder

Discussion created by toreb-geodata-no-esridist on Apr 12, 2010
Latest reply on Aug 8, 2013 by curtvprice

I have made a model where several parameters should be optional, but they are required and I cannot change it.

The attached screenshot shows two of the processes in the model. Process 1 is the only of all parameters I could set as optional. it is: single output map algebra (conditional statement) on an input raster

process 2, which can only be required; Less than Equal statement on a dtm, where the maximum elevation is a variable.

I have attached the screenshot of these two, the one I have as optional is marked with a black box while the one I can not set as optional is in a red box. I hope anyone has an idea.