I'm trying to create a legal document with decimal numbered subclauses, then alpha and roman subsub and subsubsub clauses. (whew!)

`1. MAIN HEADING

1.1 This is an example of a sub-clause and you can see that even though the words continue on to the right, it would be best if it wrapped around and formed a block to the right of the decimal number
1.2 In doing so the normal second clause should also wrap around but the second subsequent clause should hang in from the left and be in a block.  See below for the remaining clauses
    (a) this list is completely for demonstration and should  not be construed as legal language in any way, nor should make sense in that
    (b) should the indentation take  more than:
        i) this many lines it would be overly big
        11) legal numbering continues in the sub-sub clauses with the use of lower roman lettering and should flow below in a block
        iii) and continue the formatting on to the next line but be underneath the body of the the text and not begin directly below the number itself. In this example the text carries out to the right but I need it to wrap around underneath.

Sorry its so wordy, need this to show the example. 2. Second Clause Heading 2.1 and so it continues thus
I've found the examples for decimal numbering but they do not create a block out to the right of the number, and they carry on with multiple decimals rather than alpha and roman sub clauses.