Can i use a variable inside Ditto placeholder? For example
[!Ditto? &tpl=`TPL-jc` &display=$myVar]
instead of
[!Ditto? &tpl=`TPL-jc` &display=`10`]
You can use another Element inside a Ditto placeholder, e.g.
[!Ditto? &tpl=`TPL-jc` &display=`[+myVar+]`]
(that's myVar as a placeholder)
[!Ditto? &tpl=`TPL-jc` &display=`[myVar]`]
(that's myVar as a Snippet that outputs the value you want)
[!Ditto? &tpl=`TPL-jc` &display=`[*myVar*]`]
(that's myVar as a Template Variable)