Ok, but I noticed that the price today dropped some 20 pips below the lowest line and still no lines appeared. Perhaps that is the nature of the indicator, but would be good if one could specify say, 5-10 lines below current price (tradingview has some that do that).
I'm using the indicator less for the round numbers concept, but more to show me whether recent price action and support/resistance gives me the opportunity for a 10 pip target.
Anyway, it's working well and useful, other than for the point I initially mentioned.