This Wiki will guide on how to change the direction of bolts after they are placed.
1) In the Steel workflow, click on the Bolts placement dialog box.
2) Now, click on the Turn the selected bolts button and then select all the bolts which need to change the direction.
3) For example, in case of multiple selection just hold down the Ctrl button and select each bolt that needs to be overturned.
4) After selecting all the required bolts, right click to Accept. You will then see that all the bolts have been overturned to the opposite direction.
In this manner you can change the direction of any number bolts easily.