Is it possible to use just the "Time Spent" field without the other fields with "Log Work"?

[Amy Bartlett]

I would like to display just the "Time Spent" field on the screen for transitioning an incident in our workflow.  However the only way I have found to get the "Time Spent" field to display for the engineers is to include the "Log Work" field on the screen which is a collection of fields that includes "Time Spent".  The other fields are used for estimate of work etc. which isn't relevant for incidents that haven't been diagnosed because you can't estimate the effort to fix if you don't yet know what you are fixing.  The extra fields are cluttering up the screen and I would prefer to only have fields displayed that should be filled in from a user experience perspective.  Is there a way to get just the "Time Spent" field on the workflow transition screen?  Thank you for your help!