Give the App permissions to overlay over all Apps.
After that tap on + button in order to get your widget list and select the ones you want.
You can change the height and position of every widget as well. Tap on any widget to get the popup.
If you want more width for the widgets, enable it at App settings.
Use the padlock button, locked to scroll the widgets list with your finger (the scroll inside every widget will not work) or unlocked to get the scroll inside every widget work but the widgets list scroll will not work.
Tap on right side of your screen in order to show or hide the Widgets.