MeinTurnierplan.de makes it possible for you to allot a field to every match. In the third step of Prepare Tournament you can pick the number of fields. The maximum number of fields depends on the number of participants in the tournament.
If you don’t want the enumeration of fields to begin with number one, you can pick a different number. This is useful if, for instance, there are two concurrent preliminary rounds in a connected tournament.
Enforce the display of fields
Normally, a field is not shown if there is only one in total. This can be changed by clicking Show Court also if only 1 Court.

Multiple courts: participants preferably play simultaneously
There are two options of distributing participants over several fields. Your favored option can be entered in the box Multiple courts: teams play at most at the same time.
If this box is activated, as many participants as possible will play simultaneously. If the box is deactivated, as many groups as possible will play simultaneously.

Change fields afterwards
The fields that were chosen for the matches can be changed later. Under Run Tournament click Change match sequence, times, fields, placements. Here, you can pick the respective field in the box of a match. An appearing yellow frame means that two matches are staged on the same field simultaneously.
By clicking Save or Save and Return you can save your settings.