Hi, I'm using Odoo 14 Enterprise Version and I'm having trouble with the sales module.

In the sales order model, in  the default one to many fields i want to add a link or button and redirect the page to a custom view of the sales order line model with the object of the selected line where i should be able to view filtered the list to the selected data. And from there i want to select multiple rows so i can work the data of the selected rows in the PDF

In resume:

1.-I need to create a link to a custom view of an existent model

2.-Send the object of the sales order line to a custom view with pre filters

3.-In a list view i want to select multiple rows and send the objects to generate a PDF with all the items selected on the list

If you can guide or tell me what's the correct approach to this flow.