lock a range of cells when data entered into one cell within that range

jacjas

New Member
Joined
Jun 22, 2017
Messages
4
hi

I have a table of data with 6 columns columns B, D and F are the choice of subject columns for info only these list the subject names.
In columns C E and G i want the user to be able to enter a Tick to select a subject from each column but only one

so once a tick is entered into one cell in column C it will lock the rest of that cells in range C4:C16 same again for column E and Column G

so we have 1 choice made for a subject then from columns B D and F and they cant put multiple selections in

Column B Column C Column D Column E Column F Column G
Choice 1 Tick Choice 2 Tick Choice 3 Tick
Geography PE x Food
History x Spanish BPE
French Drama iMedia x

there are more choice but i have done the above as an example can anyone help at all i think i need a change macro and have found some but nothing that i can get to work as they seem to be based on rows rather than columns
 

Excel Facts

Which lookup functions find a value equal or greater than the lookup value?
MATCH uses -1 to find larger value (lookup table must be sorted ZA). XLOOKUP uses 1 to find values greater and does not need to be sorted.

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