ILR : Query Related to proof of Leave & Income source

Dear Group Members,

I too have similar Query.
1. my First job was as permanent employee.
2. second was contractor via umbrella company
3. As a Limited company

And i had taken occasional annual leaves all unpaid. do i need any proof (employment letter), self explanation letter in this cases?

Also there is Section 5 for sources of income,
section 5.6 ask to detail about source of income. since being limited company my income sources are
1. wages 2.dividend ,do i need to put it as separate source of income?
Also,
dividend vary based on number of working days in month/leave so do i need to put highest/lowest amount or just mention average?
i.e for month of april, i get dividend of 1000 due to leave and rest months it varies from 2000 - 3000. what figure do i need to put in divident section ?