Checkbox "Replace actual content" (xChkReplaceAll)

Hi there

I use the templates-function of FCK.
Now my question is: When i'm cklicking on the templates button and the templates are shown in this new window/layer - How can i configure, that the checkbox (xChkReplaceAll) "Replace actual content / Aktuellen Inhalt ersetzen" is deactivated? Is this conigurable?

Thanks for help!

lunar