In this case, you can double the initial amount of effort you had in mind (if it is sustainable for the duration of the working, otherwise, do not). So if you wanted to do 108 repetitions, make it twice a day, for example. It would not be two separate workings, that would not make sense anyway.
You can do double duty morning and night. But don't overdo it. It is better that you manage the energy and then be able to use it, rather than having too much energy and dissipating without even feeling all of it.