Ah right, very interesting and useful, it is great to know that we can plot chars anywhere on the screen. thanks. I was asking because I have a friend who coded a game for the Amstrad CPC and as the BASIC also only allows to create monochrome user defined characters; he plots 3 chars on the same place to get as it were one char in four colours as there is a way to plot them with transparency. with VDU5 and GCOL we can do the same, awesome.