There has already been an idea for this (Hiding of System Fields / Editing System Lists), but I'm hoping to have another look at this.
I'm hoping to find out, or suggest, the ability to remove certain fields from the available list of customized fields.
For example, if you're working with requirement documents there's a field "In my work". This field is not a part of the default forum but can be selected as a part of the customize fields.
As stated in the related idea, having these fields visible significantly degrades the user experience of Octane having to go through fields which are not relevant to the users, or perhaps that the Octane administrator has created that they don't want users to see.