Amaya 10.1-pre5 WinXP has some problems transforming lists:

A. A definition list can be transformed into an ordered list containing
sublists, but an ordered list containing sublists is not properly
transforned into a definiton list:

Steps to reproduce:
1. Create the following list:
<dl>
   <dt>Item 1</dt>
     <dd>Item 1-1</dd>
     <dd>Item 1-2</dd>
</dl>
2. Select this list and click the unordered list button. The following
list is created (as expected):
<ul>
   <li>Item 1
     <ul>
       <li>Item 1-1</li>
       <li>Item 1-2</li>
     </ul>
   </li>
</ul>
3. Select this list and click the definition list button. The following
list is created:
<dl>
   <dt>Item 1 </dt>
     <dd>Item aItem bItem c</dd>
</dl>
The sublist items are merged in a dd element, instead of creating two dd
elements.

B. A dd element can be transformed into a dt element, but a dt element 
can not be transformed into a dd element:

Steps to reproduce:
1. Create the following list:
<dl>
   <dt>Item 1</dt>
     <dd>Item a</dd>
</dl>
2. Select the dd element and click the dt button. The following list is 
created (as expected):
<dl>
   <dt>Item 1</dt>
   <dt>Item a</dt>
</dl>
3. Select the second dt element and click the dd button. Nothing happens.

C. The Tools > Transform menu does not offer any applicable 
transformation if a dt or a dd element is chosen. I suggest it could 
offer transform a dt into a dd element (and a dd into a dt).