KEYBOARD "{Ctrl+F10}" REPORT FORM myreport PREVIEWor define the window for your report, activate it, maximize and preview your report in that window. (see help for REPORT FORM command for more info on this one) like:
DEFINE WINDOW wMyReport FROM 0,0 TO 100,200 TITLE "My Report Preview" SYSTEM CLOSE ACTIVATE WINDOW wMyReport ZOOM WINDOW wMyReport MAX REPORT FORM myreport WINDOW wMyReport TO PRINT PREVIEW [IN SCREEN] NOCONSOLE RELEASE WINDOW wMyReport