Redmine

I was wondering if there is a way to share budgets between a parent project and a sub-project? In other words, I have several projects that will fall under one budget so I was hoping to create one main project and set the budget there; then create a number of sub-projects that would pull the hours from the main projects and count agains the main budget.

Is there currently a way to set this up? I know there can be multiple deliverables within a project with their budgest contributing the overall project budget, but I would like to have sub-projects and the time spent on them to count against a larger pool or hours/budget in the parent project.

Thanks!!