Currently you can create a formula based custom field in each space but there doesn't appear to be any way of adding that same field to other spaces. You have to recreate it from scratch in each space.
In my case I have a Sales space and a Active Projects space. In this example, let's say I create a calculated custom field that is Effort Value, which is the amount of Effort times the rate I assign to that task in another custom field, which gives me the budget value in dollars of that task. For example, the task is Design Discovery and I say it is 80 hours of effort at $200 per hour. The calculated field shows me that the Effort Value is $16,000. I use this for budget purposes.
However, now that I have this custom field in Sales, I can't add it to the Active Projects space; it isn't an option. I have to create it from scratch with the same properties and settings all over again; for each space I want to have it in.
I believe that a standard custom field will show up in the drop down list as an option to add to another space, but for some reason formula fields are not listed as an option. This is a pain when I am creating a number of calculated fields with conditional markers and such that I want to use in multiple spaces.
Is there a way to include these as options to add to other spaces so I don't have to recreate them from scratch multiple times over?