I had a bit of a play around with Lillie’s suggestion and I think I managed to achieve what you are after.
Step 1 - Enter the notes.
Step 2 - Enter the articulations (from left panel) - 2 mouse-clicks 1) select the whole bar, 2) click on the articulation
Step 3 - Enter the slur - 2 mouse-clicks 1) select the whole bar, 2) type “s”
Step 4 - Engraving Options > Articulations
apply the following settings:
For fine placement of the wedges, you can either drag them with the mouse or use the alt-up/down arrows (in Engrave mode, of course).
@Lillie_Harris Interestingly, the option for Slurs > Position of staccato, staccatissimo and tenuto relative to slurs: did not make any difference when I set it to Inside slurs, but the two immediately beneath it did.