Need your immediate guidance. I am completing 5 years on my Tier 2 general visa next month and need to apply for ILR. The employer letter that I have got contain complete list of annual leaves that I have taken while I was in UK (whether I was in UK or outside during those leaves). Now, the problem is during some of my visits outside UK, I had shown worked from home and did no apply for leaves therefore the employer letter does not contain those absences. Also, some of the trips to Europe were on the weekends so again these are not covered in the letter. I have requested my employer to list all absences from UK but they are adamant to list only leaves as per system.

Is there a workaround / additional documents that I can provide with my application that can support my case?
I have secured stamped and signed salary slips from finance department on the dates I was outside UK while working from home showing that I have been paid in full in UK salary hence it was continuos employment. Also, I can write a detailed Cover Letter to my application highliting the dates where the absentism is not reflected in employer letter.
Now, will this suffice the purpose or do you guys reckon that I will have some issues with my ILR or there is anything else I can do? Your guidenace will be much appreciated. Please help.
Also, is there any link on this portal where I can get sample cover letter?