Status Chart showing the number of proposals and projects at each status. 

Click on a column and the list of just those items of that status are revealed. 

For example, the Proposal-Researh & Prep status column can be clicked to reveal all proposals that are being researched. 

Or Proposal-Signed can reveal all proposals that need a project manager assigned. 
Or Project-Completed/Sent to Client can reveal projects that are ready to be invoiced, along with Map-Final Recorded. 
Or Project-Invoiced can reveal projects that have been invoiced. 

... and so on.