ALM v.12 Web Client: Text Format on the Requirements Description field

I'm copying a document from Microsoft Word that have numbering list formats to ALM Web Client.
But when I paste it the numbered list is changed and not ordered and formatted.

I need to to this with numbering list:

a. Text line A (with numbering)
b. Text line B. (with numbering)

     Other text align left starting at the same as Text B
                     i) Sublevel text line
                    ii) Sublevel text line
     Other text align left starting at the same position as Text Line B
                  iii) Sublevel text line

All the numbering 'a.', 'b.' and 'i,ii,iii' are numbered list.

On the ALM Web Client, Requirements Description field, the text becames:

a. Text line A (with numbering)
b. Text line B. (with numbering)
     Other text align left starting at the same as Text B
                 i) Sublevel text line
                ii) Sublevel text line
     Other text align left starting at the same position as Text Line B
1. Sublevel text line

I cannot find a solution to have the text format exactly as I have in word. Because the iii. sublevel is treated as a first Level alignment. Moreover, the button to make the identation to the right becames unavailable...

Is there way to enter in the html and change it there? Or other solution problably?

Thank you.