Welcome back Stargazer.
As far as the RM goes if you are running TMO 2.0 or 2.2 there is a button on the orders bar (periscope view) that will ID the target ship for you and send the hight to the TDC. You need V1.5 for these mods. Older TMO also have this button but am not sure if a V1.4 version does.
Good luck and good hunting
Magic