Adding multiple vlines using the same input

[AIMPED]

This might be interesting too:

The plotly equivalent of matplotlib "vlines"

Hi @nourma2 , I don’t think that there is such a builtin function. You could create a scatterplot with the y0,y1, mode=‘lines’ and this as trace to your figure. You could also create lines as annotations. EDIT: I created a function for testing purposes (quick an dirty) import plotly.graph_objects as go def add_lines(orientation, levels, bounds): if orientation == 'h': traces = [ go.Scatter(x=bounds, y=[level]*2, mode='lines', name=f'{orientation}_line_{idx}') …