A family of Microsoft relational database management systems designed for ease of use.
From your description I take it that you have a Boolean (Yes/No) column in the table which you are using to select specific rows. You are then filtering the table's datasheet to those rows via the Selection icon in the Sort & Filter area of the Home ribbon. Right?
Filtering the table's datasheet in this way will not filter the label report's RecordSource, however. To do that the RecordSource should be a query which includes the following WHERE clause:
WHERE [NameOfBooleanColumnGoesHere] = TRUE
Note that, with this addition to the report's RecordSource, there is no need to filter the table's datasheet. You merely need to update the values in the Boolean column by selecting the check box in each of the rows you wish to be returned by the label report. You can then open the report, which will be restricted to the selected rows.