Trouble Modifying a Curved Object

Hello all, is there a way I can bring the left end of this arch down to where the line is drawn, while retaining the curve on the opposite side?

Using Fredoscale got me closer to the shape I wanted, however the ends of the object became tapered. Any help would be appreciated, thank you.

I think, I don’t have the time or PC to test it just now, but Flowify by Caul would most likely do it for you.