Is it possible to filter the strategy’s operation in the MoonBot terminal if the hourly market price deltas are only within a certain range?

Yes, you can set such conditions in the MoonBot terminal on the Filters / Delta strategy settings tab using the following parameters:

Delta_Market_Min: Average hourly price delta for all altcoins, not less than (in %). Averaged across all pairs. Can be negative.
Delta_Market_Max: Delta_Market_Max: Average hourly price delta across all markets (not more than (in %).

To ensure that this parameter is checked by the strategy, set IgnoreFilters = NO on the general Filters tab, and set IgnoreDelta = NO on the Filters / Delta tab. A green vertical bar should be visible to the left of the Filters / Delta tab, indicating that this tab and the parameters in it are not being ignored.