How to get Slider in Plotly to show each value of r instead of the steps?

Question

fig = go.Figure()


for r in np.arange(0.05, 0.56, 0.005):  #want the steps to show each value in r
    xth_r,yth_r,zth_r = coords_theta(r)
    fig.add_trace(
        go.Scatter(mode="lines",
            line=dict(color="#00CED1", width=2.5),
            x=th,
            y=magB(xth_r,yth_r,zth_r,xpos,ypos,zpos,0.1*165)))

fig.data[10].visible = True

steps = []
for i in range(len(fig.data)):
    step = dict(
        method="update",
        args=[{"visible": [False] * len(fig.data)},
              {"title": "R(m) is :" + str(i)}], 
    )
    step["args"][0]["visible"][i] = True  
    steps.append(step)

sliders = [dict(
    active=10,
    currentvalue={"prefix": "R: "},
    pad={"t": 50},
    steps=steps
)]

fig.update_layout(
    sliders=sliders
)

fig.show()

The steps show up as integer values, like step-0, step-6. I don't want this, I just want them to be the values in r. I would also like to have the area underneath the slider contain maybe like every 5 values of r, such that it doesn't get overcrowded with numbers.