Values to Perspective Mesh warp in Affinity Designer v2

[MxHeppa]

Values to Perspective Mesh warp in Affinity Designer v2. i f i need exact values or for multiple elements with exactly sameway currently is hard. i donrt know what kind scales but one what dream with square subject (but not work others) pixel amount how long one side is. maybe distort % i mean original image size is 100% and 50% is half one it. at least some way compare even user drawn guides. like some other guides what helps positioing etc things. all possible ways make easier to exactly and mathmatic way get same result. i feel such is possible even this kind warp becouse other warps have own adjustments what even not allow very fine values. of coursem most uses current accuracy in these is fine.