Continue training the same model after last epoch is reached?

Hello!

I'm training a model to epoch 25, as set in the defaults. However, its now at epoch 20 and I don't think it will be ready by 25. Is there a way I can increase these number without starting over from scratch? I'm training on my laptop and it takes days so it'd be a real pain to start from zero again!

(I tried quitting training on another model before and when I started training it again, it didn't begin from the checkpoint, it started over. Not sure if this is normal or a bug.)