user defined export presets? batch export settings or save an export setting?

[^-^ 1]

howdy  :)

is there a way to save export settings in affinity photo — make user defined presets?  

for example,
different size .jpegs, resample & quality settings for future use & applications?

i dont see an option for this in the export window nor a way to edit/save the default presets

thank you!  :)