Every type of custom output can use the following keywords.
:TITLE title specifies the title to appear at the top of the window. If title is left blank the name of the graph, table or report will be used.
:LOCATION x,y specifies the location to place the output on the screen This is measured in pixels and is automatically generated by the Record Coord button in the Graph tab of the Control panel, though it can be entered directly.
:SIZE width,height specifies the initial size of the output window in pixels. This value is generated automatically by the Record Coord button in the Graph tab of the Control panel and can also be entered directly. If a separate specification is made for :WIDTH and :HEIGHT :SIZE will override this.
:NO-LEGEND n suppresses the legend in a graph (Graph or Bar-Graph). If n is 0 then the legends are shown normally. If n is 1 then the legend is suppressed, 2 the title is suppressed and 4 the x-axis labels suppressed. n = 16 will force the legend to show everything initially. You can also add the numbers to suppress more than 1 thing so that 7 would suppress all three items.