Hi Robins,
First point is that EA studio is undoubtedly the best software for this approach given its speed of generation and validation.
I know a trader who does exactly this with EA studio.
I would suggest that to be even more efficient that you save a pool of collections and validate first also, depending on the look back period I would expect most of the strategies you generated the week before to pass again this week (unless you are using an extremely short look back)
If looking for 5 trades in three days then I would expect that m5 and m15 timeframes will work better for this. Usually I expect my h1 EAs to make 1-2 trades a week.
Additionally can you share your trading background so I can help further if you have more questions. I would strongly recommend at this point that your live account is either very small and trading the smallest lot size available or a mock live account until you are getting stable results.