Is there a way to scale param value in apply.opts?

Panel
1 
import panel as pn
import holoviews as hv
pn.extension()
hv.extension("bokeh")

slider = pn.widgets.FloatSlider()

a = hv.Curve([0, 1, 2], [3, 4, 5]).apply.opts(alpha=slider.param.value * 0.5)
b = hv.Curve([0, 1, 2], [2, 3, 4]).apply.opts(alpha=slider.param.value * 0.25)
pn.Row(a * b, slider)