How do I embed multiple forms of the FMX mobile app into the same form?

The app has several different forms, all calling the same small form, because it shows the same thing, such as a grid;
If each form is repeated with a small form of the interface and code, very cumbersome, and after compiling a large volume;

In VCL this is the line:
Form1:=tform1.create (self);
Form1.parent:= Form2.panle1;
Form1.align:=alclient;
Form1.show;

How does FMX embed the same small form inside each of the different forms? 3Q..

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How do I embed multiple forms of the FMX mobile app into the same form?