From Longman Business Dictionary
insertin·sert1 /ɪnˈsɜːt-ɜːrt/ verb [transitiveT]1to put something inside or into something elseinsert something in/into/between somethingHe inserted a sheet of paper into the printer.
2to add something new to a piece of writinginsert something in/into somethingHis manager inserted a new clause into his contract.