This is another very useful trim tool. This tool also has the ability to both extend (add length) and trim lines, however polylines will not extend unless they are exploded. This trim tool allows you to select the line(s) that want to trim or extend and the line to which you want to trim or extend to (the extend to line does not have to be perpendicular and it can be a curve or a polyline).
To use this tool:
1. Click the tool (shown above).
2. Click on the line(s) which are to be trimmed or extended—the lines will highlight blue.
3. Right-click to end the selection process.
4. Click on the line to which the line(s) selected in the step above is to be extended to and then right-click. If the lines will not extend it is because they are polylines. Polylines must be first exploded to extend with this tool.
