Programming non published departure

I am certain this has been asked and answered before but I'm not sure where to look. I have an IFD550, dual G5's and a GFC500 AP. Absolutely love this combo. Flying approaches is a breeze. My question surrounds setting up the FMS to fly departures at uncontrolled fields.

I have always hand flown my departures until established on course and then turned on the AP. I often fly from an uncontrolled field and get cleared direct. I set up the FMS with a simple destination and once airborne go "direct to" and make the climbing turn on course. By doing this I get no GPS guidance on the departure. Yes, I could put the AP in heading mode (and that may be the easiest thing to do) but I am wondering if the prudent thing to do is simply look at the approach plate for the opposite runway and manually insert the FAF for that approach as the first leg of the departure. Am I overcomplicating this? What's the standard for this?

I use my IFR mainly for punching through layers, not flying low approaches to minimums. So, in reality I'm nearly always departing VFR and turning on course prior to entering IMC.

I am referring to the easiest way to program the gps for a departure that has the course (magenta line) on runway heading prior to turning on course. I don't intend to fly all the way to this point. I'd just a like my FD bars on the G5 to stay with me the whole time from departure until turning on course. If I don't insert a point at runway heading my FD bars are turned on course before my wheels are up.    

For example I am flying from KPGR to Destin (DTS) tomorrow. Lets say I got cleared direct DTS (very likely). Departing uncontrolled field it is somewhat up to me when precisely to make that turn towards my first waypoint (destination).

I'll check out your video. Thanks!

Some of this is dependent on your FD/AP. But if  it's just a simple "fly runway heading" just put the runway heading in your DG or HSI. If you want FD or AP to do it, just put  your FD in HDG and VS/IAS/ALT mode.  Flying a course or track would be wrong. "Runway heading" is a "heading," not a course. 

Edited by oskrypuch - 20 Mar 2022 at 12:54am