Cant find "place" tools in UE4.25

Hi, I’m relatively new to UE and I’ve been using the Legacy UI Mode for my projects. However, to extrude/edit etc for BSP geometry, I had to switch back to the standard UI. But now I can’t add any new geometry, or anything that was previously in the ‘place’ tab under modes - it’s missing. I feel like I’m missing something big because I can’t seem to find anything online about that issue. Any help is much appreciated. How do I fix this?