Set insert mode on automatically
SET READINSERT ON | OFF | (<expL>)
The READINSERT ON | OFF command allows you to toggle into insert mode automatically. If READINSERT is set ON, the form will be in insert mode when first activated. This command is a synonym for the READINSERT() function. By default, SET READINSERT is OFF and the user must toggle insert mode on with the insert key.
set readinsert on read