Takes 3 parameters, Location, Mode, Text
The Text will be inserted into the Template at the Location specified (see your Template itself to see what names exist in it) using one of the three Modes.
There is always one pseudo location named "Runtime" that will point to the intended default output location for the current context of the running Procedure.
Location, Mode, Text
Location, ["Append"], Text
["Runtime"], ["Append"], Text
Html "Runtime", "Append", ""
Html "[h1]Any Html[h1]"