I have created a new additional exoplanet for HD 10180 system that had 6 exoplanets previously. I imported a desert planet from one of closeby solar neighborhood and changed its parameters, then added a comet tail and wrote a script for "HD 10180 b." I had tried tune - fining the orbital parameters such as SemiMajorAxis, Period, Eccentricity, EquAscendNode, RefPlane and ArgOfPericenter in order to align new planet with that of other 6 planets in the HD 10180 system. I changed Inclination either by 90 or 180 degrees, but planet's orbital tilt is still very steep to the HD 10180 ecliptic plane. Also, typewriting "Radial velocity" in DiscMethod does not help since the SE has automatically change it to "Other." Only the original HD 10180 system script itself converts all other six planets as "Radial velocity" which I suspect it has own trick that noboby was able to copy or discern. Also HD 10180 star is 7.3 Ga and has a radius of 1.20 Solar Diameter according to the online article on Wikipedia.
Pretty picture of two exoplanets b and c orbiting close
The trouble is, new exoplanet's orbit is very steep and not correctly oriented to orbits of other six exoplanets.
I have included my "HD 10180 c" script file for your examination and correct me if I am wrong somewhere in programming it.
CPU: Intel Core i5-3470k 3.2 GHZ 4-Core Processor; RAM: Ballistix 8GB (2x4GB) DDR3-2400 memory; GPU: EVGA GeForce GTX 960 4GB FTW Gaming ACX 2.0+; and Windows 10 64-bit