3D Line Style - Post located at end of beam

Hi All, I've had a bit of trouble creating a 3D line style, this is originally for ORD 2019 Update 2, however i had some initial problems selecting a 'Base Stroke Pattern', so i've brought this back to Microstation SS3. 

Question 1) will there be issues with compatibility from SS3 .rsc and ORD, i imagine it could be visual issues in terms of materials?

Question 2) I've tried for the life of me to located a post at the end of the guard rail beam. The current post spacing 2m centers, is there a way to place a post at spaces between 0m and 2m?

Question 3) ive noticed the first post that gets placed seems to have edges shown in Col 0, - from the screen shot you can see the subsequent post does not have this edging to it, is there a way to remove the edging from the first post?

Question 4) being a noob to line style customisation, Ss there a way to clean up my 'point symbols, as ive used ROAD 3D FGF POST LHS and 3D FGF BEAM LHS - My OCD can just about deal with it, but it will be good if i can clean this up. 

Thanks in advance Slight smile

  FGF.rsc