Distributions of BLR magnifications, μ^BLR, red/blue indicators, RBI, and wings/core indicators, WCI, computed for the different BLR models magnified either by a diamond-shaped (Cols. 1 to 3) or by a triangle-shaped Chang-Refsdal caustic (Cols. 4 to 6). The histograms give the number of configurations with different distances and angles of the BLR model relative to the caustic structure that produce a given range of μ^BLR, RBI, and WCI. The abbreviation KD stands for Keplerian disk, PW for polar wind, and EW for equatorial wind. The inclination (in degrees) is denoted next to the initials of the model. The colors correspond to different BLR sizes, r_in/r_E. Only configurations with μ^BLR> 1.1 are shown.