ILR absence proof-Tier 1 General Limited Company Directors

[coolwind]

Hi All,

Apologies if this has been asked before. My query is what documents would be required for Limited Company Directors to show for absences outside UK.
For permanent guys, it's a letter from employer. For limited company directors, is it fine if we submit a personal letter signed by ourselves?

Has anyone had their ILR approved recently as a Limited Company Director? Please share your experience.