Inline messaging

At least one non-transitory computer-readable medium storing instructions that, when executed by at least one data processor, perform operations, the operations comprising:

• receiving, via a user interface on a mobile device, a selection of a location between a first message and a second message within a sequential string of multiple messages on the mobile device;
• determining a subsequence number based on the received selection,
• wherein the subsequence number has a child hierarchical relationship relative to the first message or the second message;
• receiving a new message via the user interface;
• and,
• associating the received new message with the subsequence number,
• wherein the new message is transmitted with the subsequence number, and
• wherein the subsequence number enables the new message to be displayed between the first message and the second message.

A computer-implemented method, the method comprising:

• receiving, via a user interface on a mobile device, a selection of a location between a first message and a second message within a sequential string of multiple messages on the mobile device;
• determining a number based on the received selection,
• wherein the determined number has a subordinate relationship relative to the first message or the second message;
• determining a subsequence number based on the received selection,
• wherein the subsequence number has a child hierarchical relationship relative to the first message or the second message;
• associating a received new message with the subsequence number,
• wherein the new message is transmitted with the subsequence number, and
• wherein the subsequence number enables the new message to be displayed between the first message and the second message.