1) You may replace local master in document stencil, but text of shapes will
disappear.
1) Copy Preparation shape, then File|Shapes|Show Document stencil.
2) Select Predefined process master and select Edit Master|Edit master
shape.
3) Paste Preparation shape and delete under it Predefined process.
4) Close edit window and select "OK" to update master and its shapes.
Shapes will be Preparation, but all dinamic coonections to connection
points will broke.
2) You may edit local master by point to look like Preparation shape.
1) Copy Preparation shape, then File|Shapes|Show Document stencil.
2) Select Predefined process master and select Edit Master|Edit master
shape.
3) Select master and in menu Window|Show ShapeSheet
4) Delete "Controls" section, Geometry 2 and 3 sections.
5) Change X and Y cell in Geometry 1 section
6) Close ShapeSheet window, Edit Master window and select "OK" to update
master and its shapes.
Shapes will be look like Preparation and all text not disappear and
dinamic connections will stay.
But this is much more difficult way.