Subscribe into tall Timetable

Looking for some way to code this more efficiently:

Description:

I have a large timetable and have identified 'Start' and 'End' Times. 74 Timeranges in total.

array = length(Start); %get the size of the array for pre-allocation
x{1,array} = {};       
for i=1:length(Start)
    S=timerange(Start(i),End(i),"closed");
    temp=gather(TT(S,[6 7])); %gathering the information in every loop iteration is extremely time consuming
    x{i}=temp;    
end

as mentioned above, the gathering of timerange in every loop iteration is time-consuming. It would probably be better to make a list of multiple timeranges and subcribe them in one go from the tall timetable. I tried a few things but couldnt figure out how to do that.

Can someone guide me in the right direction?

I tried to put the timeranges into an array and tried to subscribe them like that:

temp=gather(TT(S{1,:},[6 7]);

this doesnt seem to be supported. However,

temp=gather(TT(S{1,1},[6 7])

seemed to work. Can someone help out here? Its highly appreciated