Your odd and even scheme is like a two dimensional array. It will be difficult to keep track of which is which. You could store the strings and the attributes in two arrays. That will be more efficient if one type of element is a different size to the other.
LcdRows[0] is a pointer to the first character in the first string. You can print the string by passing this as a parameter to lcd.print(). You can pass it to any other function, like strncpy() which will copy strings between locations.
If you want to change that first character to an uppercase X then this code will do it:LcdRows[0][0] = 'X';
Anything with single quotes around it is a single char.