Internally, Q++Studio calculates a starting date for each diary page it generates.
In a Continuous flow of dates, the date of a token with DayValue of 1 will be 0 days after that starting date. The date for a token with DayValue of 5 will be 4 days after the starting date, and so on. A token with DayValue of 43 represents a date one day later than a token with DayValue of 42.
This may seem obvious but, if you use one of the backtrack settings, that is not the case. Using either of the backtrack settings, a token with DayValue of 42 can actually represent a later date than a token with DayValue of 43, sometimes by as much as 13 days !
In the daily, weekly or yearly grid structures, the flow of dates is always Continuous; it is not an option. Setting the Flow of Dates of a monthly grid to Continuous, is equivalent to telling Q++Studio not to treat the current grid any differently than daily, weekly or yearly grids.
We have never come across any truly continuous monthly grid. This setting would be necessary when you want total control over the flow of dates in a monthly grid, and do not wish Q++Studio to make any assumptions about the date of a token given its DayValue.
Generally, a continuous grid is really a backtrack every page grid. In either case, you will usually need to know what are the possible number of weeks that the grid will take, in which case you can use the handy minimum and maximum number of weeks needed to cover a given number of months table found in the appendices.