Hi, NPS adjustment is uncommon. CT800 does.
Elo strength: many engines do, including: Stockfish (since v11), Komodo Dragon 3.3, Fat Fritz 2, ShashChess, Wasp (since v4), Houdini (since v3), Chiron (since v2), Shredder (since v12), Arasan (since v17.2), Rybka (since 2.2n2)... there are too much to name them all.
Are There Chess Engines Which Allow Adjustment of Nodes Per Second (NPS) or ELO strength other than Rodent.
I know Rodent is supposed to do this, but the feature does not work on the interfaces I use (Arena and Fritz). For Rodent IV, the option to change ELO does not appear any configuration menus. For Rodent II, I can change NPS (a great way to change engine strength) in Arena, but Rodent III does not work at all in Fritz 15.
Let me know if other engines allow adjustment of NPS.