One question...

Theme: Symbol, component in schematic

The components on the first page should start with 100, those on the second with 200, etc....
To renumber the components, one can use the Reorganisation from menu "File":

1 (Fig. 1: Example for page 2)

You must perform the operation for each page individually. Newly inserted components must be fitted into the scheme manually. Or you can repeat the process at the end.