With the screen on and unlocked,
three presses on the fire button brings up a mess of icons. The first one looks like a half ast sine wave, that's the one you want. Long press on the fire button to select it, or just wait and it will jump to a menu. In the menu, short press of fire rotates to the next selection, long press selects and moves to the next selection. First selection, temp-memory-watt, select temp. Second, strength, soft-norm-hard, pick 'em. Third selection, wire selection, TCSS-TCTi-TCNi, select TCSS. Fourth selection, the one you want. The top line says TC-SS, with some numbers below it. For 316, use the up/down arrows to set .00092 as this is the TCR for 316SS. Fifth selection is for single or dual
coils; assuming dualies select DC. And I never figured out how to lock the arrow buttons either. You're right the documentation method doesn't do anything. Or maybe it only works in wattage mode or something. I have only ever run this thing in TC.