Like all other programs there is the option to use the ALT+(key) for pulling down menu ore send a message in your mail program. Now ALT+S will save the quike reply message, ALT+P will give you a preview.
How to use it in your forum
Topis.asp around line 1143 look for
" <td bgColor=""" & strForumCellColor & """ noWrap align=""center"" colspan=""2""><font face=""" & strDefaultFontFace & """ size=""" & strDefaultFontSize & """ color=""" & strHeadFontColor & """><input name=""Submit"" type=""submit"" value=""Submit Reply""> <input name=""Preview"" type=""button"" value=""Preview Reply"" onclick=""OpenPreview()"">"
Change to:
" <td bgColor=""" & strForumCellColor & """ noWrap align=""center"" colspan=""2""><font face=""" & strDefaultFontFace & """ size=""" & strDefaultFontSize & """ color=""" & strHeadFontColor & """><input name=""Submit"" type=""submit"" value=""Submit Reply"" accesskey=""s""> <input name=""Preview"" type=""button"" value=""Preview Reply"" onclick=""OpenPreview()"" accesskey=""p"">"
De code accesskey=""p"" where the 'p' stands for preview. Change it in any letter you whant. So far it work in most brouwsers, just not Opera, version 9 will have this litte trick to.<