How do I split custom user profile fields to their own page?

[Club3G]

I'm adding a small section to my website where users can register an item and it's serial number. I have custom field 6 as the "item name" and field 7 as
"serial number".

Ideally I'd like to have a menu option for "edit registry" on the control panel bar. Here's what I have so far, at the bottom of the Edit Options page:



I got this far by adding the following to the bottom of the modifyoptions template.

<!-- begin registry -->
<br>
<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
<tr>
	<td class="thead">Registry</td>
</tr>
<tr>
	<td class="panelsurround" align="center">
	<div class="panel">
		<div style="width:$stylevar[formwidth_usercp]" align="$stylevar[left]">
$customfields[other]

</div>
</table>
<br>
<!-- end registry -->

From here, I have two questions:

First, how can I add an "Edit Registry" option to the control panel side menu, and have it link to a new page that only shows these custom fields?

Secondly, and this is minor, is it possible to have the input boxes on the same line? eg:

Custom Profile Text:
[ input box for field5 ] - [input box for field6 ]

I *think* this is possible and wouldn't format poorly if I somehow got it to not display the custom profile field name and description, and instead entered in my own HTML formatting around the two input boxes.

Any insight/advice really appreciated, thanks as always!