Are you cutting off bits of the line because I get something like this from v151 ( ignore that actually values as it is taken from the experimental swift ecu )

Map (5.8,4.1) Thro=316 RPM=2531 o2Adj0=111.7% o2[4] o2Target=0.48V o2=0.00V o2Adj0=111.7% o2[4] o2Target=0.48V o2=0.19V OilT=-28.0C AirT=-30.0C AirP= 0mb Bat=13.50V Inj=2311us BaroAdj=100.0%

You'll notice that even though there is a difference in o2 voltage, the o2Adj are the same. Yours seem to be different. You must of changed the the following line "MyECU Cfg O2Sensors=1" to 3 to get both channels to operate independantly.
There would have been no reason to change that.

This and your other post about -ve/+ve seem to indicate you are going down the dangerous path of changes things because you think they need to be changed rather than a more scientific method of changing things that really do need to be changed.
I strongly suggest you go back to my Breva map.

In reference to your original question the Map (5.8,4.1) refers to the position in the map array that the engine is operating in. 1.0, 0.0 is idle if you have setup properly.

The numbers are actually an index into the map. For instance the RPM value of 5.8 puts it between columns 5 and 6, remember the first column is zero.

First off you should look at the colourise map to get a good visual indication to pick an area that needs adjustment.

Then you need to search the through the log to find entries around that point. Ideally you need to find lines where the X,Y has no fractional parts so that it is on the breakpoints.

From those log lines the important thing is the 02adj value. In you first example 104.3% means you should make that map entry 4% richer.

The latest ECUController has an adjust map feature where it will make corrections automatically. Treat this with caution as it is new. Basically read in a map, do the map adjust and write out to a new map. Then to be safe do a visual comparison to verify what changes where made.