Not sure I fully understand what you are asking. But, if you are asking how to setup the capital and operating costs in Clarity to reflect in Portfolio management, this can be done in one of two ways.
1. Assuming you are using the OOTB budget page, there is a field for Operating costs and Planned capital costs. You can enter the simple project values there. If you do a detailed cost plan, that will overwrite those values.
2. Cost Plans - Again, using the OOTB features- there is a cost type filed at the project level on the financial page (required OOTB) OR you can set the Capitalization % per team member or lastly you can set the cost type per task (capital vs. operating) .Once you have set those values, you can then create your cost plans based on team allocation (capitalization %) or by assignment to read the tasks. Your cost plan must have cost type as a Grouping Attribute, so that you can see the breakdown of capital and operating. Naturally, you can do a manual cost plan too and use cost type as the grouping attribute.
Katherine wrote a nice entry on cost type when it first came up. If you search the communities, you will find it.
After all that is created, the portfolio will simply read either the simple budget or the detailed cost plan to split out capital and operating costs accordingly. Your targets and the actual project data will then drive your waterline (using your ranking rules)
After that long reply if that is not what you are asking regarding setup, can you please clarify your question regarding the funding by? If you are not using the OOTB cost type (sadly we are still on charge code), then everything will default to operating costs in the portfolio.