Table 3: A spectral-line data ensemble, for each star detailed in Table 1, is presented for the Li  I 6708 Å & Balmer H$\alpha $ 6563 Å lines.
TARGET HJD S/Na Li 6707.8 Li 6707.8 Li 6707.8 Li 6707.8 H$\alpha $ H$\alpha $
  (+2450000)   EW [Å] EW [Å] EW [Å] EW [Å] EW [Å] EW [Å]
  [days]   (INTb) (GFc) (ADPd) (LITe) (GFc) (INTb)
Lupus :                
RX J1507.2-3505 2713.762 50 0.319 0.330 $0.347 \pm 0.035$ 0.324 0.622 0.634
  2718.766 74 0.350 0.351     0.553 0.586
RX J1507.4-4601 2718.790 62 0.326 0.336 $0.336 \pm 0.034$   0.637 0.831
RX J1515.7-3331 2713.860 77 0.376 0.410 $0.385 \pm 0.038$ 0.358 0.871 0.904
  2718.925 80 0.353 0.364     0.745 0.923
RX J1518.4-3738 2718.746 90 0.352 0.365 $0.365 \pm 0.037$ 0.347 0.673 0.970
RX J1523.4-4055 2719.769 22 0.399 0.408 $0.408 \pm 0.041$ 0.391 1.057 1.115
RX J1524.5-3652 2713.826 34 0.375 0.402 $0.389 \pm 0.039$ 0.351 0.809 0.690
  2719.792 36 0.377 0.379        
RX J1525.0-3604 2718.852 82 0.372 0.385 $0.385 \pm 0.039$   0.648 0.797
RX J1529.6-3546 2718.879 92 0.401 0.413 $0.413 \pm 0.041$   0.672 1.072
  2718.879           0.754 1.198
RX J1529.7-3628 2719.715 25 0.443 0.438 $0.438 \pm 0.044$   1.518 1.878
RX J1546.6-3618 2713.705 39 0.372 0.376 $0.376 \pm 0.038$ 0.381 1.605 1.914
  2719.747              
RX J1547.6-4018 2713.737 38 0.390 0.395 $0.376 \pm 0.037$ 0.385 0.717 0.903
  2718.916 67 0.368 0.374     0.768 1.138
RX J1601.1-3320 2713.799 68 0.348 0.352 $0.352 \pm 0.035$ 0.308 0.822 0.786
RX J1605.7-3905 2713.780 43   0.350 $0.350 \pm 0.035$   0.721 0.976
RX J1608.9-3905 2718.900 100 0.455 0.483 $0.483 \pm 0.049$ 0.491 0.593 1.147
  2718.900           0.721 1.186
Chamaeleon I $\&$ II                
RX J0850.1-7554 2712.590 87 0.248 0.278 $0.283 \pm 0.028$ 0.25 0.497 0.493
  2718.521 62 0.265 0.300        
  2718.521              
RX J0951.9-7901 2712.620 98 0.353 0.405 $0.405 \pm 0.041$ 0.26 0.857 1.295
  2712.620              
  2718.533 72 0.397 0.457 $0.457 \pm 0.046$   0.661 0.902
  2718.533           0.650 1.054
RX J1112.7-7637 2712.694 64 0.452 0.482 $0.470 \pm 0.047$ 0.47 1.707 2.178
  2718.546 49 0.414 0.435     0.693 0.909
RX J1129.2-7546 2713.628 27 0.484 0.497 $0.499 \pm 0.050$ 0.45 0.804 0.852
  2719.528 11 0.527 0.570        
RX J1140.3-8321 2718.563 64 0.195 0.198 $0.198 \pm 0.020$ 0.21 0.893 1.000
RX J1158.5-7754a 2713.656 65 0.495 0.501 $0.483 \pm 0.048$ 0.48 1.384 1.268
  2718.614 87 0.473 0.478     1.150 1.326
RX J1159.7-7601 2718.636 90 0.430 0.445 $0.445 \pm 0.045$ 0.50 0.892 1.147
RX J1201.7-7859 2712.734 100 0.252 0.259 $0.260 \pm 0.026$ 0.24 0.313 0.307
  2718.678 160 0.246 0.260     0.283 0.268
RX J1233.5-7523 2712.760 81 0.151 0.144 $0.135 \pm 0.013$ 0.13 0.142 0.136
  2718.716 95 0.127 0.130     0.132 0.122
RX J1239.4-7502 2713.675 81 0.426 0.436 $0.459 \pm 0.046$ 0.40 0.660 0.759
  2718.726 82 0.452 0.480     0.771 0.915
RX J1303.5-7701 2712.779              
RX J1307.3-7708 2712.794 8 0.082 0.095 $0.095 \pm 0.010$      
Rho Ophiuchus :                
RX J1627.1-2419 2712.852 14 0.222 0.275 $0.275 \pm 0.028$ 0.16 0.559 1.208
RX J1625.6-2613 2712.886 42 0.512 0.500 $0.500 \pm 0.050$ 0.45 4.287 5.075
CrA SFR :                
CrAPMS 2 2713.909 98 0.334 0.353 $0.352 \pm 0.035$ 0.28 0.987 1.031
  2719.923 46 0.315 0.329     0.711 0.982
RX J1839.0-3726 2719.869 45 0.385 0.395 $0.395 \pm 0.040$ 0.34 0.692 0.870
RX J1853.1-3609 2719.837 58 0.378 0.394 $0.394 \pm 0.040$ 0.39 0.592 0.730
RX J1917.4-3756 2713.920 93 0.471 0.490 $0.489 \pm 0.049$ 0.48 1.049 1.110
  2719.817 48 0.457 0.472     0.747 1.001
CrAPMS 4SE 2719.901 51 0.372 0.377 $0.377 \pm 0.038$ 0.36 0.584 1.041
a Approximate S/N of nearest continuum region to the blaze centre of the Li I 6708 Å order.
b EWs measured using direct integration between the limits of where the Li I/H$\alpha $ feature approaches unity on either side of its central absorption/residual emission feature.
c EWs measured using a Gaussian fit, with the same wavelength limits as for the direct integration method.
d Adopted Li I 6708 Å EW, using weighted mean of the Gaussian fitted EWs for targets having spectra recorded on different observing nights. Errors levels are estimated to be $10\%$.
e Li I 6708 Å EWs for these targets as reported in the extant literature.

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