Sorry, missed where you said you were on PC and not Mobile. Mobile has this basic/advanced option but web wouldn't, it would be like its always on advanced.
On PC you should just be able to go into the game client, select change equipment, select the club type tab towards the bottom of the window, scroll left/right for the club you want to equip (make sure its centered in that window), and then click and drag it to one of the 5 slots you want to equip it to. If a club is already in one of those slots, just drag the desired club over it and it should replace it. For example if I had a 3 Hybrid equipped, I could choose a wedge and drag it over the 3 hybrid and it would replace that club. Just make sure to click save after making these changes.
Best,
WGTShamWow