Share 'LB analysis period'

Consider for example some hourly average monitoring data from 8 am of a particular day to 18 pm of another day. I have to use the LB analysis period considering this range: It happens that all hourly data out of the range 8 am - 18 pm are cutted off: It could be useful to add an option that allow to consider all hourly data in the established range. I added a post also in github.