Also ability to route direct to a new waypoint without erasing the existing flight plan.

What is the logic for not including these options Tim?

The options in the pop-up menu now under "Route", after pressing and holding a point on the map, are limited to "Insert in Route" and "Shortcut". 

Can we have "Append to Route" also provided as an option, please? 

It's very helpful when, for example, there is a problem at the planned destination and a rapid routing to an unplanned Alternate becomes necessary.

I would also use it when I plan an "out and back" route to a specific place on a Local flight, and I want to extend the trip 'on the fly'. This is not uncommon where I operate in lots of Class G and I find I have more time than anticipated to e.g. photograph additional points of interest.

Thanks.