That involves insertion.

Able to be inserted; able to be put into something else.

Something that can be inserted.

A person who, or device that inserts. / A machine that inserts components into envelopes for mass mailing.

plural of inserter

plural of Insert

A key that when pressed switches between the overtype mode and the insert mode of a computer.

plural of inserting

Of or relating to insertion, especially in regard to sexual acts.

plural of insertable