Print cheque report customization.

I want to create a new report to print cheque and print the invoice details for the settlement.

I have selected the invoices in the settlement screen for vendor invoices. There i have marked the records my question is that how can i get these marked records in the report as the selected invoice lines.

i.e. if i select 3 invoices to pay the report should display only invoices details for these 3 selected invoices not for others. But i have checked this MARKED value is not saved in the database can some one help me in getting these marked records so that i can go on with the report.

Thanks.