Hi Devon,
You're very welcome!
The words "Detailed item info" that you are seeing on the preview page actually will not show up on your listings once posted to eBay, so there is no need to worry about that. You should be able to confirm this by viewing any of the items you have already posted through Auctiva directly on eBay.
I was previously unaware of this discrepancy between the preview page and the current “view item” page on eBay, but I will make our Product Management team aware of this so they can look into updating that aspect of the preview page with a future site update.
It is not currently possible to adjust the amount of spacing between lines using the tools that are built into our description editor, but you could potentially customize your descriptions in this manner by accessing the HTML using the “Source” tab on the editor and introducing a “line-height” value.
For example, if the HTML of one of your descriptions looks like this:
<p><span style="font-size:18px;"><span style="font-family: times new roman,times,serif;">Line 1<br />
Line 2<br />
Line 3</span></span></p>
You could then increase the amount of space between lines by updating the line height (which would be 40 pixels in this example) as follows:
<p><span style="font-size:18px; LINE-HEIGHT:40px;"><span style="font-family: times new roman,times,serif;">Line 1<br />
Line 2<br />
Line 3</span></span></p>
-Mike