I'm still figuring things out myself, so no problem.
Under the Path-WB, Path-Menu, all the Path Operations are available:
1. DogBone-Dress-up: Modifies Contour Cuts to over-cut the corners.
2. DragKnife-Dress-up: I don't know how this one works, but believe it's used for foam cutters that literally drag a knife blade.
3. Tag-Dress-up: I'm not positive, but believe this places Tabs to be when you do a cutout, similar to what I see when I order Arrays of PCBs.
4. RampEntry-Dress-up: Modifies an operation to ramp into the cut, for example, when entering a Pocket operation, instead of Plunging.
To use these (I've only used Dogbone and RampEntry so far), I select the Operation I want to Dress-Up, then I select the option from the Menu. The Operation is then subsumed under the Dress-up (In same way in greater FreeCad, an underlyng Sketch sits under the Pocket/Pad/Groove/etc...), and is moved to the bottom of the Operation list, from where I move it back to its proper order.
Fundamentally, at least with DogBone and RampEntry, the GCode is just modified, so if your simulator is GCode driven, it should be reasonably easy to add these in. At the moment, if Enabled in your Simulation-List, they stall it.
Similarly, the Partial-Path-Commands (also in the Path-Menu) stall your Simulator if enabled on the list.
1. Selection-Plane: Selects XY, XZ, YZ as the working Plane. I think this will be used for greater than 3-axis work, but am not positive about that. It also may apply to Vertical versus Horizontal CNC. Again, haven't used it myself.
2. Fixture: Selects G53-G59.9. I have used this and it stalls your simulator if selected.
3. Tool-Length-Offset: Appears to provide a mechanism for applying a Z-Offset, but haven't used it yet.
4. Comment: I believe it inserts a comment in the Job, but haven't used it yet.
5. Stop: Inserts a Full-Stop M-Code into the Job.
6. Custom: Allows Custom-GCode to be inserted by hand.
7. From-Shape: Generates GCode Paths from the selected shape and appends it after the Job I believe. The code follows the Shape, with no Offset I believe. This is a bit weird, but this is also available from the main Path menu, which I believe is a redundancy...
Below that, on the Path-Menu, is another sub-menu, Path-Modifications. I don't believe these impact your Simulator.
1. Copy the Operation In The Job: Makes a copy of the currently selected Operation, so since the basic operations don't stall the simulator, copies are fine.
2. Array: I just played with this. It takes an operation, and makes a selectable number of copies at a selectable X,Y, or Z offset (or combination). I'd never used this, but tried it with success on your simulator.
3. Simple-Copy: Copies the Selected Operation, but not sure the distinction between this and a regular copy. I tried it and it doesn't appear to work in your Simulator...
I hope this helps clarify those other items that are not yet supported.