thanks Lee,
I did find an answer there of how to set external links in the fck editor to default to target="_blank Here is the DotnetNuke version.
its rather easy once you find the location. you add a
value="_blank" and a selected="selected"
and delete a selected="selected"
Go to:
Mywebsite\Providers\HtmlEditorProviders\Fck\FCKeditor\editor\dialog\fck_link.html
1. search for select id="cmbTarget"
cut selected="selected" from
<option value="" fckLang="DlgGenNotSet" >
and paste it into
<option value="_blank" selected="selected" fckLang="DlgLnkTargetBlank">
2. search for input id="txtTargetFrame"
and add value="_blank"
to the tag.
Users can still change it but if they just create a link without selecting the target it will open in a new window.
cheers 