BizTalk's mapper allows drag and drop replace

I learned a little trick the other day about the mapper which I have never seen documented. It works for BizTalk 2004 and also 2006.

Have you ever had to change a functoid and gone thru the task of dragging the new functoid onto the grid and then reconnecting all of the lines, then having to check to make sure you got them all in order?

Well, what I realized quite by accident is that you can actually just drag the new functoid over the one you want to replace and all your links will maintain themselves. The old functoid will disappear and be replaced by the new one.

Of course there is a limitation when you have different maximum inputs, etc, but for the most part this works with everything else.