[marco]

Столкнулся с той же проблемой.
Решил так:

#############ALT/TITLE for images #############
tt_content.image.20.1.altText.cObject = TEXT
tt_content.image.20.1.altText.cObject {
    field = altText
    listNum = 0
    listNum.splitChar = 10
    override.cObject = TEXT
    override.cObject {
        listNum.stdWrap.data = register:IMAGE_NUM
        listNum.splitChar = 10
        }
    trim = 1
    }
tt_content.image.20.1.titleText.cObject = TEXT
tt_content.image.20.1.titleText.cObject {
    field = titleText
    listNum = 0
    listNum.splitChar = 10
    override.cObject = TEXT
    override.cObject {
        listNum.stdWrap.data = register:IMAGE_NUM
        listNum.splitChar = 10
        }
    trim = 1
    }
tt_content.textpic.20.1.altText < tt_content.image.20.1.altText
tt_content.textpic.20.1.titleText < tt_content.image.20.1.titleText