Cursor delta activating and inactivating

To activate it one has to:

Choose the window where we want to have cursor
from menu View choose Cursor Delta
or
from the context menu chooseCursor Delta
or
push Shift and Insert keys

To delete the cursor one should:

Choose the window where the cursor is active
from menu View choose Cursor Delta
or
from the context menu chooseCursor Delta
or
push Shift and Insert keys

Cursor Delta can be activated in many windows independently of each other. It is impossible to show both: cursor and Cursor Delta – activation of one of them inactivates the other one.