How to stop then start again exactly from the same point, meaning the same batch-number of the same epoch

Always starts from the first epoch (while keeping the weights, though).

Hi you can resume training from any of the previous saved weights but for using that your model configuration should remain same.
For that use the load previous weight option to load from previous run in the training tab.

Regards
Rajat

I thought I was clear, but I’ll rephrase my question: while running a training, I just want to pause (halt) for a while, and then let the run continue, exactly like the “pause” button on a video player.
Where is the pause button?

No sorry there is no pause option available in DLS only way you can do this is by stopping and starting training again using previous trained weights.

Regards
Rajat