NZFF

If you are flying from, say NZAA an Australian destination.
You create your flight plan, but how do you then choose which departure & arrival to use.
Sure, you can view them in the lists, but do you then have to look at all the relevant charts to work out which lines up with your plan?
Or is there an easier way?

Simbrief will give you relevant SIDs and STARs in a flight plan. IRL, I believe you are given the SID when you get your clearance (at least in NZ) and the STAR is given to you enroute. However, and those who do this for a living will be able to provide more insight, for a lot of routes, experience and geometry will dictate which you are likely to get. For example, standard routes sometimes end up at a single waypoint which a STAR starts from.

As Choppernut says above, Simbrief is a very good flightplaning tool. It will offer you what it thinks are the best departure and arrival options (Dep runway/SID and arrival runway/STAR). These can all be manually modified. For flightplanning into, out of or within the USA, it is customary to include a nominated SID or STAR. This forms part of your flight plan. ATC will still issue the SID/STAR verbally (usually). If a STAR is not issued verbally you are expected to fly your flight planned arrival (assuming of course it is still for the originally planned runway).

VATPAC is an excellent website for Australian online procedures and resources. Got to VATPAC then click on Explore tools then ATC Assist. I would recommend booking the page for future reference.
A direct link is here: ATC Tools

Ok I think I've got it.
I'm using G1000 in XP-12
Just used SimBrief to create a plan from NZCH to YSSY
First entry in the route is BAVE6P.
So that is the departure that I have to manually add to the G1000 flight plan?