Hi
if you are talking about traded volume below 2.50 you need to set a user variable with the sum of the individual traded volume for each price, something like this: (you can copy and paste the formula, but please double check all the prices)
constant: name: si description: Selection Index value: 1 (or whichever selection index you want)
TRIGGER
set user variable name: t_vol
value:
s_si_traded_2.48+s_si_traded_2.46+s_si_traded_2.44+s_si_traded_2.42+s_si_traded_2.40+s_si_traded_2.38+s_si_traded_2.36+s_si_traded_2.34+s_si_traded_2.32+s_si_traded_2.30+s_si_traded_2.28+s_si_traded_2.26+s_si_traded_2.24+s_si_traded_2.22+s_si_traded_2.20+s_si_traded_2.18+s_si_traded_2.16+s_si_traded_2.14+s_si_traded_2.12+s_si_traded_2.10+s_si_traded_2.08+s_si_traded_2.06+s_si_traded_2.04+s_si_traded_2.02+s_si_traded_2.00+s_si_traded_1.99+s_si_traded_1.98+s_si_traded_1.97+s_si_traded_1.96+s_si_traded_1.95+s_si_traded_1.94+s_si_traded_1.93+s_si_traded_1.92+s_si_traded_1.91+s_si_traded_1.90+s_si_traded_1.89+s_si_traded_1.88+s_si_traded_1.87+s_si_traded_1.86+s_si_traded_1.85+s_si_traded_1.84+s_si_traded_1.83+s_si_traded_1.82+s_si_traded_1.81+s_si_traded_1.80+s_si_traded_1.79+s_si_traded_1.78+s_si_traded_1.77+s_si_traded_1.76+s_si_traded_1.75+s_si_traded_1.74+s_si_traded_1.73+s_si_traded_1.72+s_si_traded_1.71+s_si_traded_1.70+s_si_traded_1.69+s_si_traded_1.68+s_si_traded_1.67+s_si_traded_1.66+s_si_traded_1.65+s_si_traded_1.64+s_si_traded_1.63+s_si_traded_1.62+s_si_traded_1.61+s_si_traded_1.60+s_si_traded_1.59+s_si_traded_1.58+s_si_traded_1.57+s_si_traded_1.56+s_si_traded_1.55+s_si_traded_1.54+s_si_traded_1.53+s_si_traded_1.52+s_si_traded_1.51+s_si_traded_1.50+s_si_traded_1.49+s_si_traded_1.48+s_si_traded_1.47+s_si_traded_1.46+s_si_traded_1.45+s_si_traded_1.44+s_si_traded_1.43+s_si_traded_1.42+s_si_traded_1.41+s_si_traded_1.40+s_si_traded_1.39+s_si_traded_1.38+s_si_traded_1.37+s_si_traded_1.36+s_si_traded_1.35+s_si_traded_1.34+s_si_traded_1.33+s_si_traded_1.32+s_si_traded_1.31+s_si_traded_1.30+s_si_traded_1.29+s_si_traded_1.28+s_si_traded_1.27+s_si_traded_1.26+s_si_traded_1.25+s_si_traded_1.24+s_si_traded_1.23+s_si_traded_1.22+s_si_traded_1.21+s_si_traded_1.20+s_si_traded_1.19+s_si_traded_1.18+s_si_traded_1.17+s_si_traded_1.16+s_si_traded_1.15+s_si_traded_1.14+s_si_traded_1.13+s_si_traded_1.12+s_si_traded_1.11+s_si_traded_1.10+s_si_traded_1.09+s_si_traded_1.08+s_si_traded_1.07+s_si_traded_1.06+s_si_traded_1.05+s_si_traded_1.04+s_si_traded_1.03+s_si_traded_1.02+s_si_traded_1.01
execute: no more often than 0.2
so this will update user variable t_vol with the traded volume below 2.50 for the specified selection index
you need to have this setting ticked: Settings > General Options > Selection Settings > Load traded volume for all prices