A so-called ex-immigration officer said uploading that section alone would do. Now that I’m reading your response and others here, I am now tensive because I have done as he suggested. I printed the relevant page, upon filling it, to pdf. Had about 2 pages for me and 3 for my wife. Hopefully, he is right and they don’t ask me to reupload it. Or worst deny me as a result. Hahaha.You should upload IMM1295 again online and upload it with a detailed explanation on plain paper. if there were any gaps in between your jobs/study then do mention it with satisfactory reasons. Just merge all in one pdf and upload it. Maybe they have some doubt and want to verify your employement/previous history of travel/study.
Stay Positive.
Best of Luck!!!