Lookup Question

[newbie]

HI all,
I just started AX 4.0. I am modifyin CustTable Form. I added a field to CustTable to hold emplid. So in form I have a lookup automatically created for selecting empIid.Its ok uptill here, Now my question is.
I also need to display a field next to that lookup field, which is not editable. When user selects Id from lookup, emp name should be populated in that non editable textbox.How should i do that.

2nd question.
In tab page Contact Information. lookup is in 2nd column, underneath a group.I want to display that non edit textbox next to the Lookup field, if i make columns 3 , textbox goest to the top but i want it next to lookup. Do i have to set left and top properties to control it.
Any help will be much appreciated.
Thanks