Hi,
PageButtonFormat is the right property to increase the space between page numbers. Note that usually you will need to set both PageButtonFormat and CurrentPageButtonFormat. For example, you can set PageButtonFormat to:
Code: HTML/ASPX
<div style='width:50px;'>{0}</div>
At runtime, {0} will be replaced with the real number.
The LoadingHTML is displayed at the center the Grid by default. However if somehow it's off you can re-position it yourself with HTML. For example, instead of setting LoadHTML to a simple string such as "Loading....", you can set it to something like this:
Code: HTML/ASPX
<div style="width:500px;height:300px;margin-top:140px;">Loading...</div>
Hope this helps. Please feel free to let us know if you have any more questions.
This way you will be able to control the loading message position precisely.
Thanks!