Tabs
Tabs bring not only an extra level of sophistication to your window layout, they give you extra room to add more elements. Tabs are one of the 3 container Elements, Elements that hold or contain other Elements. The other two are the Column and Frame Elements.
import PySimpleGUI as sg
tab1_layout = [[sg.T('This is inside tab 1')]]
tab2_layout = [[sg.T('This is inside tab 2')],
[sg.In(key='in')]]
layout = [[sg.TabGroup([[sg.Tab('Tab 1', tab1_layout, tooltip='tip'), sg.Tab('Tab 2', tab2_layout)]], tooltip='TIP2')],
[sg.Button('Read')]]
window = sg.Window('My window with tabs', layout, default_element_size=(12,1))
while True:
event, values = window.read()
print(event,values)
if event == sg.WIN_CLOSED: # always, always give a way out!
break