When creating a project it is possible to create a budget where I can post invoices and bills to the respective budgetary positions, but how to create a position/line for the hours? 

If i create a position/line without budgetary position, the hours consumed, are allocated to this line, the problem is that all the postings also go to the respective budgetary position line and also to this one without budgetary position.

it should be used solely for project management, only with project, timesheet, accounting and respective dependencies.

thanks