In LivePlan, there is no concept of startup costs separate from regular budgeted expenses. Our original Windows software (Business Plan Pro), which was used to create the sample plan library, did support such a concept. That approach was often confusing to users, though, who had trouble figuring out what to put in the startup period vs. month 1 of their plan. We also found that approach to be problematic in encouraging users to track their progress and keep their plan alive during the execution phase.
In LivePlan we encourage users to set their start date to the first month with any financial activity, rather than the date of the first sale. That way, "startup" costs can be scheduled appropriately in month 1, 2, 3, etc., making it easier to track progress during the execution phase.
We agree it could be nice to add a way to list the startup-associated expenses and major purchases separately, just to give plan readers a better sense of the ramp-up requirements. That's something we will consider for future development.
In the meantime, if you'd like to include such a list in your plan, the best option would be to add a custom topic to your plan outline, and use it to list the startup costs as a bulleted list. The video below walks you through those steps: