Paramatthajotika and Ledi Sayado

Would anyone to give some information about a Pali work called
Paramatthajotika? The author is supposed to be a monk called
Saddhammajotika. It is frequently quoted in the chapter on cosmology in
Dr. Sunthorn Na-Rangsi's /The Buddhist Concepts of Kamma and Rebirth.
/Although some quotations seem to be identical with the Paramatthadipani
by Ledi Sayadaw, a commentary on the Abhidhammasangaha (Abhidh-s), there
are differences and it does seem to be a different work that is possibly
of modern Thai origin. There is a printed Thai script edition.
Is the author Thai? How old is it? Is it a commentary on the Abhidh-s?
The info would be of use for the Pali Literature list I am working on.
There are many commentaries on the Abhidh-s and it might be identical
with one already on the list.
By the way, does anyone know the upasampadaa Pali name of the Le.dii
Sayaa.do (as his name is spelled on the CSCD)?
Thanks.
                     Bh. Nyanatusita