Was wondering if it is possible when you set up a buton to show a report in preview mode

can you set it so it opens onto of the form

the database im working on, the form is big and very hard to see the report open behind it

Have you tried to minimize the form prior to the code opening your report ?
Docmd.Minimize (line prior to opening report )

Then reopen your form upon the Report Closing.
DoCmd.Openform"YourFormnamehere" acNormal, , , acFormEdit, acWindowNormal (on closing your report)