After having created the placement list of the single board(s), you can create the panel data with the "Board Creator" tab.
To start, you have to select the panel step that should be created (1). It is also possible to create panels in panels (recursive), when the most outer panel is selected.
For the given panel, the included single board(s) is/are listed unter (2). Here an already existing placement list on the OIB server must be selected per board and side. If the placement lists where created before in this session with the "Placement List Creator", the information is already prefilled. If not, you can click the small browse button and select the right placement list.
In the block (3), there are different options available:
In the block (4), you can choose which CAD layers should be exported and imported in OIB for this board per side. It is mainly thought for paste/mask layers.
When clicking the 'Create Board via OIB' button (5), you are asked to select a folder on the OIB server and enter the name for the board entry. Afterwards, the board is created via OIB.
Here is a screenshot of the result in the SIPLACE Software: