There a many ways to do this. SaaS provider can explain what kind of customization options you have.
http://maximodev.blogspot.com/p/conditional-expressions.html?m=1
Stay away from SigOptions if at all possible using alternative solutions. I find it difficult to maintain and becomes a mess as you add more SigOptions over time. Sure, it was fine when you were on Maximo 6 because it was one of the few options, but there are much better solutions in Maximo.
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