I could be misunderstanding, but do you mean something like this?
using WGLMakie
fig = Figure()
ax = Axis(fig[1, 1])
# Set up slider
x = 0:0.1:10
sl_x = SliderGrid(fig[2, 1], (label="distance", range=x))
# Plot function
T(x) = sin(x) * exp(-x/4)
lines!(ax, x, T.(x))
# Update limits to pan window
x_obs = sl_x.sliders[1].value
@lift xlims!(ax, $x_obs - 1, $x_obs + 1)
fig