  The Sun's history is still a subject of interest to modern astrophysics.
Observationally constrained CME rates of young solar analogues are still
lacking, as those require dedicated monitoring. We present medium resolution
optical spectroscopic monitoring of a small sample of bright and prominent
solar analogues over a period of three years using the 0.5m telescope at
observatory Lustb\"uhel Graz (OLG) of the University of Graz, Austria. The aim
is the detection of flares and CMEs from those spectra. In more than 1700 hours
of spectroscopic monitoring we found signatures of four flares and one filament
eruption on EK Dra which has been reported in previous literature, but we
complementarily extended the data to cover the latter phase. The other stars
did not reveal detectable signatures of activity. For these non-detections we
derive upper limits of occurrence rates of very massive CMEs, which are
detectable with our observational setup, ranging from 0.1 to 2.2 per day , but
these may be even smaller than the given rates considering observational
biases. Furthermore, we investigate the detectability of flares/CMEs in OLG
spectra by utilizing solar 2D H{\alpha} spectra from MEES solar observatory. We
find that solar-sized events are not detectable within our observations. By
scaling up the size of the solar event, we show that with a fractional active
region area of 18% in residual spectra and 24% in equivalent width time series
derived from the same residuals that solar events are detectable if they had
hypothetically occurred on HN Peg.
