ok think I figured it out.
in direct mode also called console! you have 4 slot to load a file too. load works almost same way like as with petit computer but more advanced features some what!
to load a grp or prg in petitcomputer you would do it like this
example> LOAD"GRP0:DT0001A",0
it would load with no load dialog screen
0そうだね プレイ済み