Yes, you can add a baseboard, but you can't insert it in the middle directly.
To add a baseboard:
Click on the end of the route where you want to add a baseboard.
Click on the topology tool where you make hills and add water.
Click on the advanced pullout on the bottom.
Click on Add baseboard.
A baseboard will be added at the end of the route at zero height. To repeat this on the same end, go to the end of the baseboard on the outside edge and insert another baseboard. You can do this process repeatedly to increase the length.
To insert a baseboard.
Open up Content Manager-Plus and export(save) a copy of your route to a CDP for safe keeping.
In TRS2006, clone your route to create a second copy. You will need the 2 copies for editing and merging back together.
Once you've completed the clones, edit one of the routes.
Delete the baseboards you above where you want to insert your new baseboards. Deleting baseboards is found on the same advanced pull-out as above. It is important to know that deleting a baseboard is permanent and can't be undone. This why you made a backup!
Insert as may baseboards as you wish.
Save
Open the 2nd copy.
Delete the baseboards not needed on this section below to remove the section you had inserted new baseboards on in the previous copy, because they're duplicated in the other copy now with the added baseboards.
Save.
Merge the two routes together.
Your old route has been extended in the middle.
Hope this helps.
John
Trainz User Since: 12-2003
Trainz User ID: 124863
TRS2019/Trainz-PLUS: 114800
TRS22 Beta tester